[Isolates] Move contents of Top into Isolate....

test/cctest/test-regexp.cc

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1200 matching lines @@
 
   NativeRegExpMacroAssembler::Result result =
       Execute(*code,
               *input,
               0,
               start_adr,
               start_adr + input->length(),
               NULL);
 
   CHECK_EQ(NativeRegExpMacroAssembler::EXCEPTION, result);
-  CHECK(Top::has_pending_exception());
-  Top::clear_pending_exception();
+  CHECK(Isolate::Current()->has_pending_exception());
+  Isolate::Current()->clear_pending_exception();
 }
 
 
 TEST(MacroAssemblerNativeLotsOfRegisters) {
   v8::V8::Initialize();
   ContextInitializer initializer;
 
   ArchRegExpMacroAssembler m(NativeRegExpMacroAssembler::ASCII, 2);
 
   // At least 2048, to ensure the allocated space for registers
@@ skipping 26 matching lines @@
               *input,
               0,
               start_adr,
               start_adr + input->length(),
               captures);
 
   CHECK_EQ(NativeRegExpMacroAssembler::SUCCESS, result);
   CHECK_EQ(0, captures[0]);
   CHECK_EQ(42, captures[1]);
 
-  Top::clear_pending_exception();
+  Isolate::Current()->clear_pending_exception();
 }
 
 #else  // V8_INTERPRETED_REGEXP
 
 TEST(MacroAssembler) {
   V8::Initialize(NULL);
   byte codes[1024];
   RegExpMacroAssemblerIrregexp m(Vector<byte>(codes, 1024));
   // ^f(o)o.
   Label fail, fail2, start;
@@ skipping 519 matching lines @@
     bool in_second = CharacterInSet(&l2, i);
     CHECK((in_first || in_second) == CharacterInSet(&all, i));
   }
 }
 
 
 TEST(Graph) {
   V8::Initialize(NULL);
   Execute("\\b\\w+\\b", false, true, true);
 }