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

src/regexp-macro-assembler.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 158 matching lines @@
                                           input,
                                           start_offset,
                                           input_start,
                                           input_end,
                                           output,
                                           stack_base,
                                           direct_call);
   ASSERT(result <= SUCCESS);
   ASSERT(result >= RETRY);
 
-  if (result == EXCEPTION && !Top::has_pending_exception()) {
+  if (result == EXCEPTION && !Isolate::Current()->has_pending_exception()) {
     // We detected a stack overflow (on the backtrack stack) in RegExp code,
     // but haven't created the exception yet.
-    Top::StackOverflow();
+    Isolate::Current()->StackOverflow();
   }
   return static_cast<Result>(result);
 }
 
 
 static unibrow::Mapping<unibrow::Ecma262Canonicalize> canonicalize;
 
 
 byte NativeRegExpMacroAssembler::word_character_map[] = {
     0x00u, 0x00u, 0x00u, 0x00u, 0x00u, 0x00u, 0x00u, 0x00u,
@@ skipping 61 matching lines @@
     return NULL;
   }
   *stack_base = new_stack_base;
   intptr_t stack_content_size = old_stack_base - stack_pointer;
   return new_stack_base - stack_content_size;
 }
 
 #endif  // V8_INTERPRETED_REGEXP
 
 } }  // namespace v8::internal