Remove test for native resolver

runtime/vm/parser.cc

Index: runtime/vm/parser.cc
diff --git a/runtime/vm/parser.cc b/runtime/vm/parser.cc
index b4be5516c043bc17e201e9f4a3d323068e1ed0ef..a63642dde91cc00bf71ce6a3d219739aa01d58c9 100644
--- a/runtime/vm/parser.cc
+++ b/runtime/vm/parser.cc
@@ -2611,21 +2611,7 @@ SequenceNode* Parser::ParseFunc(const Function& func,
       Function::Handle(innermost_function().raw());
   innermost_function_ = func.raw();
 
-  // Check to ensure we don't have classes with native fields in libraries
-  // which do not have a native resolver. This check is delayed until the class
-  // is actually used. Invocation of a function in the class is the first point
-  // of use. Access of const static fields in the class do not trigger an error.
-  if (current_class().num_native_fields() != 0) {
-    const Library& lib = Library::Handle(current_class().library());
-    if (lib.native_entry_resolver() == NULL) {
-      const String& cls_name = String::Handle(current_class().Name());
-      const String& lib_name = String::Handle(lib.url());
-      ErrorMsg(current_class().token_pos(),
-               "class '%s' is trying to extend a native fields class, "
-               "but library '%s' has no native resolvers",
-               cls_name.ToCString(), lib_name.ToCString());
-    }
-  }
+  // TODO(12455) : Need better validation mechanism.
 
   if (func.IsConstructor()) {
     SequenceNode* statements = ParseConstructor(func, default_parameter_values);