Cleanup missed prototype comments.

src/Compilers/CSharp/Test/Emit/CodeGen/CodeGenTupleEqualityTests.cs

@@ -2191,7 +2191,7 @@ public static void Main()
 Operator '!=' cannot be applied to operands of type 'System.ValueTuple<int,int,int>' and 'System.ValueTuple<int,int,int>'");
         }
 
-        // PROTOPTYPE(nullable-api): Support deconstruction assignment
+        // https://github.com/dotnet/roslyn/issues/35010 Support deconstruction assignment
         [Fact]
         public void TestComparisonWithDeconstructionResult()
         {

src/Compilers/CSharp/Test/Emit/CodeGen/PatternTests.cs

@@ -1970,7 +1970,7 @@ .maxstack  1
 }");
         }
 
-        // PROTOPTYPE(nullable-api): Support deconstruction assignment
+        // https://github.com/dotnet/roslyn/issues/35010 Support deconstruction assignment
         [Fact]
         public void DoNotShareInputForMutatingWhenClause()
         {

src/Compilers/CSharp/Test/Semantic/Semantics/NullableReferenceTypesTests.cs

@@ -46332,6 +46332,23 @@ static void F(object? x, object? y)
                 Diagnostic(ErrorCode.WRN_NullReferenceReceiver, "t.Rest.Item2").WithLocation(11, 13));
         }
 
+        [Fact(Skip = "https://github.com/dotnet/roslyn/issues/35157")]
+        public void TupleTypeInference_08()
+        {
+            var source =
+                @"
+class C
+{
+    void M()
+    {
+        _ = (null, 2);
+    }
+}";
+
+            var comp = CreateCompilation(source, options: WithNonNullTypesTrue());
+            comp.VerifyDiagnostics();
+        }
+
         [Fact]
         [WorkItem(29970, "https://github.com/dotnet/roslyn/issues/29970")]
         public void Tuple_Assignment_01()

src/EditorFeatures/CSharpTest/Diagnostics/DiagnosticAnalyzerDriver/DiagnosticAnalyzerDriverTests.cs

@@ -20,7 +20,7 @@ namespace Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.Diagnostics.UserDiagnos
     [UseExportProvider]
     public class DiagnosticAnalyzerDriverTests
     {
-        [Fact(Skip = "PROTOTYPE(nullable-api)")]
+        [Fact]
         public async Task DiagnosticAnalyzerDriverAllInOne()
         {
             var source = TestResource.AllInOneCSharpCode;
@@ -88,7 +88,7 @@ class C
             }
         }
 
-        [Fact(Skip = "PROTOTYPE(nullable-api)")]
+        [Fact]
         [WorkItem(759, "https://github.com/dotnet/roslyn/issues/759")]
         public async Task DiagnosticAnalyzerDriverIsSafeAgainstAnalyzerExceptions()
         {
@@ -129,7 +129,7 @@ public void DiagnosticServiceIsSafeAgainstAnalyzerExceptions_2()
             Assert.True(exceptions.Count == 0);
         }
 
-        [Fact(Skip = "PROTOTYPE(nullable-api)")]
+        [Fact]
         public async Task AnalyzerOptionsArePassedToAllAnalyzers()
         {
             using (var workspace = TestWorkspace.CreateCSharp(TestResource.AllInOneCSharpCode, TestOptions.Regular))

src/EditorFeatures/CSharpTest/Diagnostics/Suppression/SuppressionAllCodeTests.cs

@@ -26,13 +26,13 @@ protected override TestWorkspace CreateWorkspaceFromFile(string definition, Pars
 
         [WorkItem(956453, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/956453")]
         [WorkItem(1007071, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/1007071")]
-        [Fact(Skip = "PROTOTYPE(nullable-api)"), Trait(Traits.Feature, Traits.Features.CodeActionsSuppression)]
+        [Fact, Trait(Traits.Feature, Traits.Features.CodeActionsSuppression)]
         public async Task TestPragmaWarningOnEveryNodes()
         {
             await TestPragmaAsync(TestResource.AllInOneCSharpCode, CSharpParseOptions.Default, verifier: t => t.IndexOf("#pragma warning disable", StringComparison.Ordinal) >= 0);
         }
 
-        [Fact(Skip = "PROTOTYPE(nullable-api)"), Trait(Traits.Feature, Traits.Features.CodeActionsSuppression)]
+        [Fact, Trait(Traits.Feature, Traits.Features.CodeActionsSuppression)]
         public async Task TestSuppressionWithAttributeOnEveryNodes()
         {
             await TestSuppressionWithAttributeAsync(

src/EditorFeatures/CSharpTest/ExtractMethod/ExtractMethodTests.cs

@@ -9549,7 +9549,7 @@ private static int NewMethod()
         }
 
         [WorkItem(604389, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/604389")]
-        [Fact(Skip = "PROTOTYPE(nullable-api)"), Trait(Traits.Feature, Traits.Features.ExtractMethod)]
+        [Fact, Trait(Traits.Feature, Traits.Features.ExtractMethod)]
         public async Task TestExtractLiteralExpression()
         {
             var code =
@@ -9587,7 +9587,7 @@ class C
         }
 
         [WorkItem(604389, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/604389")]
-        [Fact(Skip = "PROTOTYPE(nullable-api)"), Trait(Traits.Feature, Traits.Features.ExtractMethod)]
+        [Fact, Trait(Traits.Feature, Traits.Features.ExtractMethod)]
         public async Task TestExtractCollectionInitializer()
         {
             var code =

src/EditorFeatures/CSharpTest/ExtractMethod/SelectionValidatorTests.cs

@@ -1330,7 +1330,7 @@ static void Main()
 
         [WorkItem(540787, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/540787")]
         [WorkItem(542722, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/542722")]
-        [Fact(Skip = "PROTOTYPE(nullable-api)"), Trait(Traits.Feature, Traits.Features.ExtractMethod)]
+        [Fact, Trait(Traits.Feature, Traits.Features.ExtractMethod)]
         public async Task DontCrash()
         {
             await IterateAllAsync(TestResource.AllInOneCSharpCode);

src/EditorFeatures/CSharpTest/NameTupleElement/NameTupleElementTests.cs

@@ -85,7 +85,7 @@ public async Task TestInCall_FirstElement_AlreadyNamed()
             await TestMissingAsync(@"class C { void M((int arg1, int arg2) x) => M(([||]arg1: 1, 2)); }");
         }
 
-        [Fact(Skip = "PROTOTYPE(nullable-api)")]
+        [Fact(Skip = "https://github.com/dotnet/roslyn/issues/35157")]
         public async Task TestUntypedTuple()
         {
             await TestMissingAsync(

src/EditorFeatures/CSharpTest/RemoveUnusedParametersAndValues/RemoveUnusedParametersTests.cs

@@ -1058,7 +1058,7 @@ public int M2(int p3, int p4)
         }
 
         [WorkItem(32287, "https://github.com/dotnet/roslyn/issues/32287")]
-        [Fact(Skip = "PROTOTYPE(nullable-api)"), Trait(Traits.Feature, Traits.Features.CodeActionsRemoveUnusedParameters)]
+        [Fact, Trait(Traits.Feature, Traits.Features.CodeActionsRemoveUnusedParameters)]
         public async Task Parameter_DeclarationPatternWithNullDeclaredSymbol()
         {
             await TestDiagnosticMissingAsync(

src/EditorFeatures/CSharpTest/UseExplicitTypeForConst/UseExplicitTypeForConstTests.cs

@@ -170,7 +170,7 @@ void M()
 }");
         }
 
-        [Fact(Skip = "PROTOTYPE(nullable-api)")]
+        [Fact]
         public async Task TestNotWithArrayInitializer()
         {
             await TestMissingInRegularAndScriptAsync(

src/EditorFeatures/Test2/Expansion/NameExpansionTests.vb

@@ -9,7 +9,7 @@ Namespace Microsoft.CodeAnalysis.Editor.UnitTests.Expansion
 #Region "C# Tests"
 
         <WorkItem(604392, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/604392")>
-        <Fact(Skip:="PROTOTYPE(nullable-api)"), Trait(Traits.Feature, Traits.Features.Expansion)>
+        <Fact, Trait(Traits.Feature, Traits.Features.Expansion)>
         Public Async Function TestNoExpansionForPropertyNamesOfObjectInitializers() As Task
             Dim input =
 <Workspace>