fix #605 - Missing namespace when 2+ classes with the same name exist in the same assembly

ILSpy/Languages/CSharpLanguage.cs

@@ -201,7 +201,7 @@ namespace ICSharpCode.ILSpy
 
 		public override void DecompileType(TypeDefinition type, ITextOutput output, DecompilationOptions options)
 		{
-			AstBuilder codeDomBuilder = CreateAstBuilder(options, currentType: type);
+			AstBuilder codeDomBuilder = CreateAstBuilder(options, currentModule: type.Module);
 			codeDomBuilder.AddType(type);
 			RunTransformsAndGenerateCode(codeDomBuilder, output, options);
 		}

ILSpy/VB/VBLanguage.cs

@@ -351,7 +351,7 @@ namespace ICSharpCode.ILSpy.VB
 		
 		public override void DecompileType(TypeDefinition type, ITextOutput output, DecompilationOptions options)
 		{
-			AstBuilder codeDomBuilder = CreateAstBuilder(options, currentType: type);
+			AstBuilder codeDomBuilder = CreateAstBuilder(options, currentModule: type.Module);
 			codeDomBuilder.AddType(type);
 			RunTransformsAndGenerateCode(codeDomBuilder, output, options, type.Module);
 		}