[builtins] FastNewFunctionContextStub becomes a builtin

src/interpreter/interpreter.cc

Index: src/interpreter/interpreter.cc
diff --git a/src/interpreter/interpreter.cc b/src/interpreter/interpreter.cc
index c33421f21351c875568f398533dae3ade9a0fe1d..1a30663acbf009b5bf4e07bcf763928255091e34 100644
--- a/src/interpreter/interpreter.cc
+++ b/src/interpreter/interpreter.cc
@@ -2454,8 +2454,9 @@ void Interpreter::DoCreateFunctionContext(InterpreterAssembler* assembler) {
   Node* closure = __ LoadRegister(Register::function_closure());
   Node* slots = __ BytecodeOperandUImm(0);
   Node* context = __ GetContext();
-  __ SetAccumulator(FastNewFunctionContextStub::Generate(
-      assembler, closure, slots, context, FUNCTION_SCOPE));
+  ConstructorBuiltinsAssembler constructor_assembler(assembler->state());
+  __ SetAccumulator(constructor_assembler.EmitFastNewFunctionContext(
+      closure, slots, context, FUNCTION_SCOPE));
   __ Dispatch();
 }
 
@@ -2466,8 +2467,9 @@ void Interpreter::DoCreateEvalContext(InterpreterAssembler* assembler) {
   Node* closure = __ LoadRegister(Register::function_closure());
   Node* slots = __ BytecodeOperandUImm(0);
   Node* context = __ GetContext();
-  __ SetAccumulator(FastNewFunctionContextStub::Generate(
-      assembler, closure, slots, context, EVAL_SCOPE));
+  ConstructorBuiltinsAssembler constructor_assembler(assembler->state());
+  __ SetAccumulator(constructor_assembler.EmitFastNewFunctionContext(
+      closure, slots, context, EVAL_SCOPE));
   __ Dispatch();
 }