Rename some of the enum definitions inside classes to avoid conflict with the ObjectKind enum.

vm/stub_code_x64_test.cc

Index: vm/stub_code_x64_test.cc
===================================================================
--- vm/stub_code_x64_test.cc	(revision 9791)
+++ vm/stub_code_x64_test.cc	(working copy)
@@ -25,7 +25,8 @@
 static Function* CreateFunction(const char* name) {
   const String& function_name = String::ZoneHandle(String::NewSymbol(name));
   Function& function = Function::ZoneHandle(
-      Function::New(function_name, RawFunction::kFunction, true, false, 0));
+      Function::New(function_name, RawFunction::kRegularFunction,
+                    true, false, 0));
   return &function;
 }