[turbofan] Call FastNewContextStub for function context.

src/compiler/js-operator.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/js-operator.h"
 
 #include <limits>
 
 #include "src/base/lazy-instance.h"
 #include "src/compiler/opcodes.h"
@@ skipping 454 matching lines @@
   V(Yield, Operator::kNoProperties, 1, 1)                 \
   V(Create, Operator::kEliminatable, 0, 1)                \
   V(HasProperty, Operator::kNoProperties, 2, 1)           \
   V(TypeOf, Operator::kEliminatable, 1, 1)                \
   V(InstanceOf, Operator::kNoProperties, 2, 1)            \
   V(ForInDone, Operator::kPure, 2, 1)                     \
   V(ForInNext, Operator::kNoProperties, 4, 1)             \
   V(ForInPrepare, Operator::kNoProperties, 1, 3)          \
   V(ForInStep, Operator::kPure, 1, 1)                     \
   V(StackCheck, Operator::kNoProperties, 0, 0)            \
-  V(CreateFunctionContext, Operator::kNoProperties, 1, 1) \
   V(CreateWithContext, Operator::kNoProperties, 2, 1)     \
   V(CreateModuleContext, Operator::kNoProperties, 2, 1)
 
 
 #define CACHED_OP_LIST_WITH_LANGUAGE_MODE(V)           \
   V(LessThan, Operator::kNoProperties, 2, 1)           \
   V(GreaterThan, Operator::kNoProperties, 2, 1)        \
   V(LessThanOrEqual, Operator::kNoProperties, 2, 1)    \
   V(GreaterThanOrEqual, Operator::kNoProperties, 2, 1) \
   V(BitwiseOr, Operator::kNoProperties, 2, 1)          \
@@ skipping 280 matching lines @@
 
 const Operator* JSOperatorBuilder::CreateLiteralObject(int literal_flags) {
   return new (zone()) Operator1<int>(                             // --
       IrOpcode::kJSCreateLiteralObject, Operator::kNoProperties,  // opcode
       "JSCreateLiteralObject",                                    // name
       3, 1, 1, 1, 1, 2,                                           // counts
       literal_flags);                                             // parameter
 }
 
 
+const Operator* JSOperatorBuilder::CreateFunctionContext(int slot_count) {
+  return new (zone()) Operator1<int>(                               // --
+      IrOpcode::kJSCreateFunctionContext, Operator::kNoProperties,  // opcode
+      "JSCreateFunctionContext",                                    // name
+      1, 1, 1, 1, 1, 2,                                             // counts
+      slot_count);                                                  // parameter
+}
+
+
 const Operator* JSOperatorBuilder::CreateCatchContext(
     const Handle<String>& name) {
   return new (zone()) Operator1<Handle<String>, Handle<String>::equal_to,
                                 Handle<String>::hash>(           // --
       IrOpcode::kJSCreateCatchContext, Operator::kNoProperties,  // opcode
       "JSCreateCatchContext",                                    // name
       2, 1, 1, 1, 1, 2,                                          // counts
       name);                                                     // parameter
 }
 
@@ skipping 15 matching lines @@
                                 Handle<ScopeInfo>::hash>(         // --
       IrOpcode::kJSCreateScriptContext, Operator::kNoProperties,  // opcode
       "JSCreateScriptContext",                                    // name
       1, 1, 1, 1, 1, 2,                                           // counts
       scpope_info);                                               // parameter
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8