Revert of Do not eagerly instantiate accessors' JSFunction.

src/x64/code-stubs-x64.cc

Index: src/x64/code-stubs-x64.cc
diff --git a/src/x64/code-stubs-x64.cc b/src/x64/code-stubs-x64.cc
index 978598e3a845ccc7a47fa17c210b40826cdd5bd9..b28e53bd9835542dd1c81926fff69cb6177d9133 100644
--- a/src/x64/code-stubs-x64.cc
+++ b/src/x64/code-stubs-x64.cc
@@ -5365,10 +5365,11 @@
   __ jmp(&leave_exit_frame);
 }
 
+
 static void CallApiFunctionStubHelper(MacroAssembler* masm,
                                       const ParameterCount& argc,
                                       bool return_first_arg,
-                                      bool call_data_undefined, bool is_lazy) {
+                                      bool call_data_undefined) {
   // ----------- S t a t e -------------
   //  -- rdi                 : callee
   //  -- rbx                 : call_data
@@ -5431,10 +5432,8 @@
   // Push return address back on stack.
   __ PushReturnAddressFrom(return_address);
 
-  if (!is_lazy) {
-    // load context from callee
-    __ movp(context, FieldOperand(callee, JSFunction::kContextOffset));
-  }
+  // load context from callee
+  __ movp(context, FieldOperand(callee, JSFunction::kContextOffset));
 
   // Allocate the v8::Arguments structure in the arguments' space since
   // it's not controlled by GC.
@@ -5507,7 +5506,7 @@
 void CallApiFunctionStub::Generate(MacroAssembler* masm) {
   bool call_data_undefined = this->call_data_undefined();
   CallApiFunctionStubHelper(masm, ParameterCount(rax), false,
-                            call_data_undefined, false);
+                            call_data_undefined);
 }
 
 
@@ -5515,9 +5514,8 @@
   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, is_lazy);
+                            call_data_undefined);
 }