CA2208 Instantiate argument exceptions correctly

eng/Common.globalconfig

@@ -373,7 +373,7 @@ dotnet_diagnostic.CA2153.severity = none
 dotnet_diagnostic.CA2201.severity = none
 
 # Instantiate argument exceptions correctly
-dotnet_diagnostic.CA2208.severity = suggestion
+dotnet_diagnostic.CA2208.severity = warning
 
 # Non-constant fields should not be visible
 dotnet_diagnostic.CA2211.severity = none

src/Build.OM.UnitTests/TransientIO.cs

@@ -79,7 +79,7 @@ public string GetAbsolutePath(string relative)
             var absolute = Path.GetFullPath(Path.IsPathRooted(relative) ? relative : Path.Combine(tempRoot, relative));
             if (!IsControled(absolute))
             {
-                throw new ArgumentException(nameof(relative));
+                throw new ArgumentException("Either the path is invalid or it is not rooted to RootFolder.", nameof(relative));
             }
 
             return absolute;

src/StringTools/InternableString.Simple.cs

@@ -20,7 +20,8 @@ public static string AsSpan<T>(this T[] array, int start, int length)
             {
                 return new string(charArray, start, length);
             }
-            throw new ArgumentException(nameof(array));
+
+            throw new ArgumentException("array is not char array.", nameof(array));
         }
     }
 }

src/Tasks/ManifestUtil/TrustInfo.cs

@@ -412,7 +412,7 @@ public bool IsFullTrust
         public PermissionSet PermissionSet
         {
             get => GetOutputPermissionSet();
-            set => _outputPermissionSet = value ?? throw new ArgumentNullException("PermissionSet cannot be set to null.");
+            set => _outputPermissionSet = value ?? throw new ArgumentNullException(nameof(value), "PermissionSet cannot be set to null.");
         }
 #endif