Don't treat template generated files with assembly attributes as generated...

Don't treat template generated files with assembly attributes as generated code (e.g. AssemblyInfo.cs)

Fixes #4390

src/VisualStudio/Core/Test/GenerateType/GenerateTypeViewModelTests.vb

@@ -585,7 +585,7 @@ class Program
 
             Dim viewModel = GetViewModel(workspaceXml, LanguageNames.CSharp)
 
-            Dim expectedDocuments = {"Test1.cs", "Test2.cs", "Test3.cs"}
+            Dim expectedDocuments = {"Test1.cs", "Test2.cs", "AssemblyInfo.cs", "Test3.cs"}
             Assert.Equal(expectedDocuments, viewModel.DocumentList.Select(Function(d) d.Document.Name).ToArray())
         End Sub
 

src/Workspaces/Core/Portable/GeneratedCodeRecognition/GeneratedCodeRecognitionServiceFactory.cs

@@ -37,12 +37,10 @@ private static bool IsFileNameForGeneratedCode(string fileName)
                 {
                     fileName = Path.GetFileNameWithoutExtension(fileName);
 
-                    if (fileName.EndsWith("AssemblyInfo", StringComparison.OrdinalIgnoreCase) ||
-                        fileName.EndsWith(".designer", StringComparison.OrdinalIgnoreCase) ||
+                    if (fileName.EndsWith(".designer", StringComparison.OrdinalIgnoreCase) ||
                         fileName.EndsWith(".generated", StringComparison.OrdinalIgnoreCase) ||
                         fileName.EndsWith(".g", StringComparison.OrdinalIgnoreCase) ||
-                        fileName.EndsWith(".g.i", StringComparison.OrdinalIgnoreCase) ||
-                        fileName.EndsWith(".AssemblyAttributes", StringComparison.OrdinalIgnoreCase))
+                        fileName.EndsWith(".g.i", StringComparison.OrdinalIgnoreCase))
                     {
                         return true;
                     }

src/Workspaces/CoreTest/GeneratedCodeRecognitionTests.cs

@@ -16,6 +16,10 @@ public void TestFileNamesNotGenerated()
                 "Test",
                 "Test.cs",
                 "Test.vb",
+                "AssemblyInfo.cs",
+                "AssemblyInfo.vb",
+                ".NETFramework,Version=v4.5.AssemblyAttributes.cs",
+                ".NETFramework,Version=v4.5.AssemblyAttributes.vb",
                 "Test.notgenerated.cs",
                 "Test.notgenerated.vb",
                 "Test.generated",
@@ -29,8 +33,6 @@ public void TestFileNamesGenerated()
                 "TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92",
                 "TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs",
                 "TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.vb",
-                "AssemblyInfo.cs",
-                "AssemblyInfo.vb",
                 "Test.designer.cs",
                 "Test.designer.vb",
                 "Test.Designer.cs",
@@ -40,9 +42,7 @@ public void TestFileNamesGenerated()
                 "Test.g.cs",
                 "Test.g.vb",
                 "Test.g.i.cs",
-                "Test.g.i.vb",
-                ".NETFramework,Version=v4.5.AssemblyAttributes.cs",
-                ".NETFramework,Version=v4.5.AssemblyAttributes.vb");
+                "Test.g.i.vb");
         }
 
         private static void TestFileNames(bool assertGenerated, params string[] fileNames)