[builtins] Add support for NewTarget to Execution::New.

src/globals.h

 // Copyright 2012 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.
 
 #ifndef V8_GLOBALS_H_
 #define V8_GLOBALS_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 583 matching lines @@
   // Always wrap the receiver and call to the JSFunction. Only use this flag
   // both the receiver type and the target method are statically known.
   WRAP_AND_CALL
 };
 
 
 enum CallConstructorFlags {
   NO_CALL_CONSTRUCTOR_FLAGS = 0,
   // The call target is cached in the instruction stream.
   RECORD_CONSTRUCTOR_TARGET = 1,
+  // TODO(bmeurer): Kill these SUPER_* modes and use the Construct builtin
+  // directly instead; also there's no point in collecting any "targets" for
+  // super constructor calls, since these are known when we optimize the
+  // constructor that contains the super call.
   SUPER_CONSTRUCTOR_CALL = 1 << 1,
   SUPER_CALL_RECORD_TARGET = SUPER_CONSTRUCTOR_CALL | RECORD_CONSTRUCTOR_TARGET
 };
 
 
 enum CacheHolderFlag {
   kCacheOnPrototype,
   kCacheOnPrototypeReceiverIsDictionary,
   kCacheOnPrototypeReceiverIsPrimitive,
   kCacheOnReceiver
@@ skipping 396 matching lines @@
 inline FunctionKind WithObjectLiteralBit(FunctionKind kind) {
   kind = static_cast<FunctionKind>(kind | FunctionKind::kInObjectLiteral);
   DCHECK(IsValidFunctionKind(kind));
   return kind;
 }
 } }  // namespace v8::internal
 
 namespace i = v8::internal;
 
 #endif  // V8_GLOBALS_H_