X64: Add missing pop when calling handler with Out-of-memory exception.

src/x64/codegen-x64.cc

 // Copyright 2009 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 6449 matching lines @@
   ExternalReference pending_exception(Top::k_pending_exception_address);
   __ store_rax(pending_exception);
 
   // Restore the stack to the address of the ENTRY handler
   __ movq(rsp, rdx);
 
   // Clear the context pointer;
   __ xor_(rsi, rsi);
 
   // Restore registers from handler.
-
+  __ pop(kScratchRegister);  // Next Handler.  Not used.
   __ pop(rbp);  // FP
   ASSERT_EQ(StackHandlerConstants::kFPOffset + kPointerSize,
             StackHandlerConstants::kStateOffset);
   __ pop(rdx);  // State
 
   ASSERT_EQ(StackHandlerConstants::kStateOffset + kPointerSize,
             StackHandlerConstants::kPCOffset);
   __ ret(0);
 }
 
@@ skipping 777 matching lines @@
 int CompareStub::MinorKey() {
   // Encode the two parameters in a unique 16 bit value.
   ASSERT(static_cast<unsigned>(cc_) < (1 << 15));
   return (static_cast<unsigned>(cc_) << 1) | (strict_ ? 1 : 0);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal