Made Isolate a mandatory parameter for everything Handle-related.

src/x64/macro-assembler-x64.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 683 matching lines @@
                                               int stack_space) {
   Label empty_result;
   Label prologue;
   Label promote_scheduled_exception;
   Label delete_allocated_handles;
   Label leave_exit_frame;
   Label write_back;
 
   Factory* factory = isolate()->factory();
   ExternalReference next_address =
-      ExternalReference::handle_scope_next_address();
+      ExternalReference::handle_scope_next_address(isolate());
   const int kNextOffset = 0;
   const int kLimitOffset = Offset(
-      ExternalReference::handle_scope_limit_address(),
+      ExternalReference::handle_scope_limit_address(isolate()),
       next_address);
   const int kLevelOffset = Offset(
-      ExternalReference::handle_scope_level_address(),
+      ExternalReference::handle_scope_level_address(isolate()),
       next_address);
   ExternalReference scheduled_exception_address =
       ExternalReference::scheduled_exception_address(isolate());
 
   // Allocate HandleScope in callee-save registers.
   Register prev_next_address_reg = r14;
   Register prev_limit_reg = rbx;
   Register base_reg = r15;
   movq(base_reg, next_address);
   movq(prev_next_address_reg, Operand(base_reg, kNextOffset));
@@ skipping 3898 matching lines @@
   j(greater, &no_info_available);
   CompareRoot(MemOperand(scratch_reg, -AllocationSiteInfo::kSize),
               Heap::kAllocationSiteInfoMapRootIndex);
   bind(&no_info_available);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64