Revert "Add bulk operations to Collection<T>"

src/netstandard/ref/System.Collections.ObjectModel.cs

@@ -18,7 +18,6 @@ public Collection(System.Collections.Generic.IList<T> list) { }
         bool System.Collections.IList.IsReadOnly { get { throw null; } }
         object System.Collections.IList.this[int index] { get { throw null; } set { } }
         public void Add(T item) { }
-        public void AddRange(System.Collections.Generic.IEnumerable<T> collection) { }
         public void Clear() { }
         protected virtual void ClearItems() { }
         public bool Contains(T item) { throw null; }
@@ -27,15 +26,9 @@ public void CopyTo(T[] array, int index) { }
         public int IndexOf(T item) { throw null; }
         public void Insert(int index, T item) { }
         protected virtual void InsertItem(int index, T item) { }
-        protected virtual void InsertItemsRange(int index, System.Collections.Generic.IEnumerable<T> collection) { }
-        public void InsertRange(int index, System.Collections.Generic.IEnumerable<T> collection) { }
         public bool Remove(T item) { throw null; }
         public void RemoveAt(int index) { }
         protected virtual void RemoveItem(int index) { }
-        protected virtual void RemoveItemsRange(int index, int count) { }
-        public void RemoveRange(int index, int count) { }
-        protected virtual void ReplaceItemsRange(int index, int count, System.Collections.Generic.IEnumerable<T> collection) { }
-        public void ReplaceRange(int index, int count, System.Collections.Generic.IEnumerable<T> collection) { }
         protected virtual void SetItem(int index, T item) { }
         void System.Collections.ICollection.CopyTo(System.Array array, int index) { }
         System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { throw null; }

src/netstandard/src/ApiCompatBaseline.monoandroid.txt

@@ -284,13 +284,6 @@ MembersMustExist : Member 'System.Collections.Generic.Dictionary<TKey, TValue>.T
 MembersMustExist : Member 'System.Collections.Generic.HashSet<T>.EnsureCapacity(System.Int32)' does not exist in the implementation but it does exist in the contract.
 TypesMustExist : Type 'System.Collections.Generic.IAsyncEnumerable<T>' does not exist in the implementation but it does exist in the contract.
 TypesMustExist : Type 'System.Collections.Generic.IAsyncEnumerator<T>' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.AddRange(System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.InsertItemsRange(System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.InsertRange(System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.RemoveItemsRange(System.Int32, System.Int32)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.RemoveRange(System.Int32, System.Int32)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.ReplaceItemsRange(System.Int32, System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.ReplaceRange(System.Int32, System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
 MembersMustExist : Member 'System.Collections.ObjectModel.KeyedCollection<TKey, TItem>.TryGetValue(TKey, TItem)' does not exist in the implementation but it does exist in the contract.
 CannotRemoveAttribute : Attribute 'System.Runtime.CompilerServices.IsReadOnlyAttribute' exists on 'System.Collections.Specialized.BitVector32.Section' in the contract but not the implementation.
 TypeCannotChangeClassification : Type 'System.Collections.Specialized.BitVector32.Section' is marked as readonly in the contract so it must also be marked readonly in the implementation.
@@ -1028,4 +1021,4 @@ CannotChangeAttribute : Attribute 'System.AttributeUsageAttribute' on 'System.Xm
 CannotChangeAttribute : Attribute 'System.AttributeUsageAttribute' on 'System.Xml.Serialization.XmlChoiceIdentifierAttribute' changed from '[AttributeUsageAttribute(AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.Property | AttributeTargets.ReturnValue, AllowMultiple=false)]' in the contract to '[AttributeUsageAttribute(AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.Property | AttributeTargets.ReturnValue)]' in the implementation.
 CannotRemoveBaseTypeOrInterface : Type 'System.Xml.Serialization.XmlSchemaImporter' does not inherit from base type 'System.Xml.Serialization.SchemaImporter' in the implementation but it does in the contract.
 CannotChangeAttribute : Attribute 'System.AttributeUsageAttribute' on 'System.Xml.Serialization.XmlSerializerAssemblyAttribute' changed from '[AttributeUsageAttribute(AttributeTargets.Class | AttributeTargets.Enum | AttributeTargets.Interface | AttributeTargets.Struct, AllowMultiple=false)]' in the contract to '[AttributeUsageAttribute(AttributeTargets.Class | AttributeTargets.Enum | AttributeTargets.Interface | AttributeTargets.Struct)]' in the implementation.
-Total Issues: 1029
+Total Issues: 1022

src/netstandard/src/ApiCompatBaseline.net461.txt

@@ -334,13 +334,6 @@ MembersMustExist : Member 'System.Collections.Generic.Queue<T>.TryPeek(T)' does
 MembersMustExist : Member 'System.Collections.Generic.SortedSet<T>.TryGetValue(T, T)' does not exist in the implementation but it does exist in the contract.
 MembersMustExist : Member 'System.Collections.Generic.Stack<T>.TryPeek(T)' does not exist in the implementation but it does exist in the contract.
 MembersMustExist : Member 'System.Collections.Generic.Stack<T>.TryPop(T)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.AddRange(System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.InsertItemsRange(System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.InsertRange(System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.RemoveItemsRange(System.Int32, System.Int32)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.RemoveRange(System.Int32, System.Int32)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.ReplaceItemsRange(System.Int32, System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.ReplaceRange(System.Int32, System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
 MembersMustExist : Member 'System.Collections.ObjectModel.KeyedCollection<TKey, TItem>.TryGetValue(TKey, TItem)' does not exist in the implementation but it does exist in the contract.
 CannotRemoveAttribute : Attribute 'System.Runtime.CompilerServices.IsReadOnlyAttribute' exists on 'System.Collections.Specialized.BitVector32.Section' in the contract but not the implementation.
 TypeCannotChangeClassification : Type 'System.Collections.Specialized.BitVector32.Section' is marked as readonly in the contract so it must also be marked readonly in the implementation.
@@ -1190,4 +1183,4 @@ CannotChangeAttribute : Attribute 'System.ObsoleteAttribute' on 'System.Xml.Sche
 CannotChangeAttribute : Attribute 'System.AttributeUsageAttribute' on 'System.Xml.Serialization.XmlAnyAttributeAttribute' changed from '[AttributeUsageAttribute(AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.Property | AttributeTargets.ReturnValue)]' in the contract to '[AttributeUsageAttribute(AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.Property | AttributeTargets.ReturnValue, AllowMultiple=false)]' in the implementation.
 CannotChangeAttribute : Attribute 'System.AttributeUsageAttribute' on 'System.Xml.Serialization.XmlNamespaceDeclarationsAttribute' changed from '[AttributeUsageAttribute(AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.Property | AttributeTargets.ReturnValue)]' in the contract to '[AttributeUsageAttribute(AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.Property | AttributeTargets.ReturnValue, AllowMultiple=false)]' in the implementation.
 TypesMustExist : Type 'System.Xml.XPath.XDocumentExtensions' does not exist in the implementation but it does exist in the contract.
-Total Issues: 1191
+Total Issues: 1184

src/netstandard/src/ApiCompatBaseline.xamarin.ios.txt

@@ -284,13 +284,6 @@ MembersMustExist : Member 'System.Collections.Generic.Dictionary<TKey, TValue>.T
 MembersMustExist : Member 'System.Collections.Generic.HashSet<T>.EnsureCapacity(System.Int32)' does not exist in the implementation but it does exist in the contract.
 TypesMustExist : Type 'System.Collections.Generic.IAsyncEnumerable<T>' does not exist in the implementation but it does exist in the contract.
 TypesMustExist : Type 'System.Collections.Generic.IAsyncEnumerator<T>' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.AddRange(System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.InsertItemsRange(System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.InsertRange(System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.RemoveItemsRange(System.Int32, System.Int32)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.RemoveRange(System.Int32, System.Int32)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.ReplaceItemsRange(System.Int32, System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.ReplaceRange(System.Int32, System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
 MembersMustExist : Member 'System.Collections.ObjectModel.KeyedCollection<TKey, TItem>.TryGetValue(TKey, TItem)' does not exist in the implementation but it does exist in the contract.
 CannotRemoveAttribute : Attribute 'System.Runtime.CompilerServices.IsReadOnlyAttribute' exists on 'System.Collections.Specialized.BitVector32.Section' in the contract but not the implementation.
 TypeCannotChangeClassification : Type 'System.Collections.Specialized.BitVector32.Section' is marked as readonly in the contract so it must also be marked readonly in the implementation.
@@ -1073,4 +1066,4 @@ CannotChangeAttribute : Attribute 'System.AttributeUsageAttribute' on 'System.Xm
 CannotChangeAttribute : Attribute 'System.AttributeUsageAttribute' on 'System.Xml.Serialization.XmlChoiceIdentifierAttribute' changed from '[AttributeUsageAttribute(AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.Property | AttributeTargets.ReturnValue, AllowMultiple=false)]' in the contract to '[AttributeUsageAttribute(AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.Property | AttributeTargets.ReturnValue)]' in the implementation.
 CannotRemoveBaseTypeOrInterface : Type 'System.Xml.Serialization.XmlSchemaImporter' does not inherit from base type 'System.Xml.Serialization.SchemaImporter' in the implementation but it does in the contract.
 CannotChangeAttribute : Attribute 'System.AttributeUsageAttribute' on 'System.Xml.Serialization.XmlSerializerAssemblyAttribute' changed from '[AttributeUsageAttribute(AttributeTargets.Class | AttributeTargets.Enum | AttributeTargets.Interface | AttributeTargets.Struct, AllowMultiple=false)]' in the contract to '[AttributeUsageAttribute(AttributeTargets.Class | AttributeTargets.Enum | AttributeTargets.Interface | AttributeTargets.Struct)]' in the implementation.
-Total Issues: 1074
+Total Issues: 1067

src/netstandard/src/ApiCompatBaseline.xamarin.mac.txt

@@ -284,13 +284,6 @@ MembersMustExist : Member 'System.Collections.Generic.Dictionary<TKey, TValue>.T
 MembersMustExist : Member 'System.Collections.Generic.HashSet<T>.EnsureCapacity(System.Int32)' does not exist in the implementation but it does exist in the contract.
 TypesMustExist : Type 'System.Collections.Generic.IAsyncEnumerable<T>' does not exist in the implementation but it does exist in the contract.
 TypesMustExist : Type 'System.Collections.Generic.IAsyncEnumerator<T>' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.AddRange(System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.InsertItemsRange(System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.InsertRange(System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.RemoveItemsRange(System.Int32, System.Int32)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.RemoveRange(System.Int32, System.Int32)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.ReplaceItemsRange(System.Int32, System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
-MembersMustExist : Member 'System.Collections.ObjectModel.Collection<T>.ReplaceRange(System.Int32, System.Int32, System.Collections.Generic.IEnumerable<T>)' does not exist in the implementation but it does exist in the contract.
 MembersMustExist : Member 'System.Collections.ObjectModel.KeyedCollection<TKey, TItem>.TryGetValue(TKey, TItem)' does not exist in the implementation but it does exist in the contract.
 CannotRemoveAttribute : Attribute 'System.Runtime.CompilerServices.IsReadOnlyAttribute' exists on 'System.Collections.Specialized.BitVector32.Section' in the contract but not the implementation.
 TypeCannotChangeClassification : Type 'System.Collections.Specialized.BitVector32.Section' is marked as readonly in the contract so it must also be marked readonly in the implementation.
@@ -1032,4 +1025,4 @@ CannotChangeAttribute : Attribute 'System.AttributeUsageAttribute' on 'System.Xm
 CannotChangeAttribute : Attribute 'System.AttributeUsageAttribute' on 'System.Xml.Serialization.XmlChoiceIdentifierAttribute' changed from '[AttributeUsageAttribute(AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.Property | AttributeTargets.ReturnValue, AllowMultiple=false)]' in the contract to '[AttributeUsageAttribute(AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.Property | AttributeTargets.ReturnValue)]' in the implementation.
 CannotRemoveBaseTypeOrInterface : Type 'System.Xml.Serialization.XmlSchemaImporter' does not inherit from base type 'System.Xml.Serialization.SchemaImporter' in the implementation but it does in the contract.
 CannotChangeAttribute : Attribute 'System.AttributeUsageAttribute' on 'System.Xml.Serialization.XmlSerializerAssemblyAttribute' changed from '[AttributeUsageAttribute(AttributeTargets.Class | AttributeTargets.Enum | AttributeTargets.Interface | AttributeTargets.Struct, AllowMultiple=false)]' in the contract to '[AttributeUsageAttribute(AttributeTargets.Class | AttributeTargets.Enum | AttributeTargets.Interface | AttributeTargets.Struct)]' in the implementation.
-Total Issues: 1033
+Total Issues: 1026