fix bug when printing type names introduced by commit 51fc2f10cc

ICSharpCode.Decompiler/Ast/AstBuilder.cs

@@ -437,6 +437,7 @@ namespace ICSharpCode.Decompiler.Ast
 					} else {
 						astType = new SimpleType(name);
 						
+						if (!type.HasGenericParameters) {
 							// Look for generic type parameters defined in TypeDefinition
 							// allows us to display angle brackets in unbound type names
 							// e.g. typeof(List<>)
@@ -446,6 +447,7 @@ namespace ICSharpCode.Decompiler.Ast
 								((SimpleType)astType).TypeArguments.Add(new SimpleType(""));
 							}
 						}
+					}
 					astType.AddAnnotation(type);
 					
 					if ((options & ConvertTypeOptions.IncludeTypeParameterDefinitions) == ConvertTypeOptions.IncludeTypeParameterDefinitions) {