Add more default references so that classes in System.IO are available out of the box

src/NETStandardReferenceAssemblies/NETStandardReferenceAssemblies.csproj

@@ -26,7 +26,7 @@
       <!--
         Copies all references from NuGet packages to the output directory
       -->
-      <Content Include="@(ReferencePath)" Condition=" '%(ReferencePath.NuGetIsFrameworkReference)' == 'false' " KeepMetadata="CopyToOutputDirectory">
+      <Content Include="@(ReferencePath)" Condition=" '%(ReferencePath.NuGetIsFrameworkReference)' != 'true' " KeepMetadata="CopyToOutputDirectory">
         <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
         <Link>$(DestinationSubDirectory)%(Filename)%(Extension)</Link>
         <Visible>false</Visible>

src/RoslynCodeTaskFactory/CodeTaskFactory.cs

@@ -54,7 +54,9 @@ public sealed partial class CodeTaskFactory : ITaskFactory
                     "System.Collections",
                     "System.IO",
                     "System.IO.FileSystem",
+                    "System.IO.FileSystem.Primitives",
                     "System.Linq",
+                    "System.Runtime.Extensions",
                 }
             },
             // CSharp specific assembly references

src/Samples/Directory.Build.targets

@@ -18,6 +18,8 @@
             Log.LogMessage(MessageImportance.High, "Hello from an inline task created by Roslyn!");
             Log.LogMessageFromText($"Parameter1: '{Parameter1}'", MessageImportance.High);
             Log.LogMessageFromText($"Parameter2: '{Parameter2}'", MessageImportance.High);
+            Log.LogMessageFromText($"%TEMP%: {Path.GetTempPath()}", MessageImportance.High);
+
             Parameter3 = "A value from the Roslyn CodeTaskFactory";]]>
       </Code>
     </Task>