Fix failing tests because additional interfaces are included in proxy…

… name

The only way to now generate proxies that do not contain the additional
interface names in the proxy name is by using the MEF document visitors.

This simplifies the code and makes it easier to reuse from the code fixes.

test/Proxy.Tests/ProxyGeneratorTests.cs

@@ -28,16 +28,16 @@ public class ProxyGeneratorTests
         [InlineData(LanguageNames.CSharp)]
         [InlineData(LanguageNames.VisualBasic)]
         [Theory]
-        public async Task GeneratedProxyDoesNotContainAdditionalInterfaceInName(string languageName)
+        public async Task GeneratedProxyNameContainsAdditionalInterfaceInName(string languageName)
         {
             var compilation = await CanGenerateProxy(languageName, typeof(INotifyPropertyChanged), typeof(IDisposable));
             var assembly = compilation.Emit();
             var proxyType = assembly.GetExportedTypes().FirstOrDefault();
 
             Assert.NotNull(proxyType);
             Assert.True(typeof(IDisposable).IsAssignableFrom(proxyType));
-            Assert.False(proxyType.FullName.Contains(nameof(IDisposable)),
-                $"Generated proxy should not contain the additional type {nameof(IDisposable)} in its name.");
+            Assert.True(proxyType.FullName.Contains(nameof(IDisposable)),
+                $"Generated proxy should contain the additional type {nameof(IDisposable)} in its name.");
         }
 
         [InlineData(LanguageNames.CSharp)]

test/Sdk.Tests/GeneratorTests.cs

@@ -36,7 +36,6 @@ public async Task CanGenerateProxies(string languageName)
                     .Concat(new[] { typeof(GeneratorTests).Assembly.ManifestModule.FullyQualifiedName })
                     .Select(x => new MSBuild.TaskItem(x)).ToArray(),
                 AdditionalGenerators = new[] { new MSBuild.TaskItem(typeof(CSharpMocked).Assembly.ManifestModule.FullyQualifiedName) },
-                AdditionalInterfaces = new[] { new MSBuild.TaskItem(typeof(IMocked).FullName) },
                 AdditionalProxies = new[] { new MSBuild.TaskItem(typeof(ICalculator).FullName) },
             };