Do not eagerly instantiate accessors' JSFunction.

src/x87/code-stubs-x87.cc

Index: src/x87/code-stubs-x87.cc
diff --git a/src/x87/code-stubs-x87.cc b/src/x87/code-stubs-x87.cc
index fc8387364e249f73d0c962f9bd9bb1df765b8d7e..fbf3862dee70df47fa0b7455b5753f7b51b09431 100644
--- a/src/x87/code-stubs-x87.cc
+++ b/src/x87/code-stubs-x87.cc
@@ -5215,11 +5215,10 @@ static void CallApiFunctionAndReturn(MacroAssembler* masm,
   __ jmp(&leave_exit_frame);
 }
 
-
 static void CallApiFunctionStubHelper(MacroAssembler* masm,
                                       const ParameterCount& argc,
                                       bool return_first_arg,
-                                      bool call_data_undefined) {
+                                      bool call_data_undefined, bool is_lazy) {
   // ----------- S t a t e -------------
   //  -- edi                 : callee
   //  -- ebx                 : call_data
@@ -5293,8 +5292,10 @@ static void CallApiFunctionStubHelper(MacroAssembler* masm,
   // push return address
   __ push(return_address);
 
-  // load context from callee
-  __ mov(context, FieldOperand(callee, JSFunction::kContextOffset));
+  if (!is_lazy) {
+    // load context from callee
+    __ mov(context, FieldOperand(callee, JSFunction::kContextOffset));
+  }
 
   // API function gets reference to the v8::Arguments. If CPU profiler
   // is enabled wrapper function will be called and we need to pass
@@ -5366,7 +5367,7 @@ static void CallApiFunctionStubHelper(MacroAssembler* masm,
 void CallApiFunctionStub::Generate(MacroAssembler* masm) {
   bool call_data_undefined = this->call_data_undefined();
   CallApiFunctionStubHelper(masm, ParameterCount(eax), false,
-                            call_data_undefined);
+                            call_data_undefined, false);
 }
 
 
@@ -5374,8 +5375,9 @@ void CallApiAccessorStub::Generate(MacroAssembler* masm) {
   bool is_store = this->is_store();
   int argc = this->argc();
   bool call_data_undefined = this->call_data_undefined();
+  bool is_lazy = this->is_lazy();
   CallApiFunctionStubHelper(masm, ParameterCount(argc), is_store,
-                            call_data_undefined);
+                            call_data_undefined, is_lazy);
 }