Refactor ExternalReference::isolate_address() to not rely on Isolate::Current().

src/ia32/macro-assembler-ia32.cc

 // Copyright 2012 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 2068 matching lines @@
 
   bind(&promote_scheduled_exception);
   TailCallRuntime(Runtime::kPromoteScheduledException, 0, 1);
 
   // HandleScope limit has changed. Delete allocated extensions.
   ExternalReference delete_extensions =
       ExternalReference::delete_handle_scope_extensions(isolate());
   bind(&delete_allocated_handles);
   mov(Operand::StaticVariable(limit_address), edi);
   mov(edi, eax);
-  mov(Operand(esp, 0), Immediate(ExternalReference::isolate_address()));
+  mov(Operand(esp, 0),
+      Immediate(ExternalReference::isolate_address(isolate())));
   mov(eax, Immediate(delete_extensions));
   call(eax);
   mov(eax, edi);
   jmp(&leave_exit_frame);
 }
 
 
 void MacroAssembler::JumpToExternalReference(const ExternalReference& ext) {
   // Set the entry point and jump to the C entry runtime stub.
   mov(ebx, Immediate(ext));
@@ skipping 1014 matching lines @@
   j(greater, &no_info_available);
   cmp(MemOperand(scratch_reg, -AllocationSiteInfo::kSize),
       Immediate(Handle<Map>(isolate()->heap()->allocation_site_info_map())));
   bind(&no_info_available);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32