Remove flags for ES2015 features shipped in M48

src/js/macros.py

 # Copyright 2006-2009 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 96 matching lines @@
 
 # Inline macros. Use %IS_VAR to make sure arg is evaluated only once.
 macro NUMBER_IS_NAN(arg) = (!%_IsSmi(%IS_VAR(arg)) && !(arg == arg));
 macro NUMBER_IS_FINITE(arg) = (%_IsSmi(%IS_VAR(arg)) || ((arg == arg) && (arg != 1/0) && (arg != -1/0)));
 macro TO_BOOLEAN(arg) = (!!(arg));
 macro TO_INTEGER(arg) = (%_ToInteger(arg));
 macro TO_INTEGER_MAP_MINUS_ZERO(arg) = (%_IsSmi(%IS_VAR(arg)) ? arg : %NumberToIntegerMapMinusZero(arg));
 macro TO_INT32(arg) = ((arg) | 0);
 macro TO_UINT32(arg) = ((arg) >>> 0);
 macro TO_LENGTH(arg) = (%_ToLength(arg));
-macro TO_LENGTH_OR_UINT32(arg) = (FLAG_harmony_tolength ? TO_LENGTH(arg) : TO_UINT32(arg));
-macro TO_LENGTH_OR_INTEGER(arg) = (FLAG_harmony_tolength ? TO_LENGTH(arg) : TO_INTEGER(arg));
 macro TO_STRING(arg) = (%_ToString(arg));
 macro TO_NUMBER(arg) = (%_ToNumber(arg));
 macro TO_OBJECT(arg) = (%_ToObject(arg));
 macro TO_PRIMITIVE(arg) = (%_ToPrimitive(arg));
 macro TO_PRIMITIVE_NUMBER(arg) = (%_ToPrimitive_Number(arg));
 macro TO_PRIMITIVE_STRING(arg) = (%_ToPrimitive_String(arg));
 macro TO_NAME(arg) = (%_ToName(arg));
 macro JSON_NUMBER_TO_STRING(arg) = ((%_IsSmi(%IS_VAR(arg)) || arg - arg == 0) ? %_NumberToString(arg) : "null");
 macro HAS_OWN_PROPERTY(arg, index) = (%_Call(ObjectHasOwnProperty, arg, index));
 macro HAS_INDEX(array, index, is_array) = ((is_array && %_HasFastPackedElements(%IS_VAR(array))) ? (index < array.length) : (index in array));
@@ skipping 131 matching lines @@
 define kStrongMode = 10;
 define kRegExpPrototypeStickyGetter = 11;
 define kRegExpPrototypeToString = 12;
 define kRegExpPrototypeUnicodeGetter = 13;
 define kIntlV8Parse = 14;
 define kIntlPattern = 15;
 define kIntlResolved = 16;
 define kPromiseChain = 17;
 define kPromiseAccept = 18;
 define kPromiseDefer = 19;