Revert of Remove more dead code after Object.observe removal

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 156 matching lines @@
 
 # For the regexp capture override array.  This has the same
 # format as the arguments to a function called from
 # String.prototype.replace.
 macro OVERRIDE_MATCH(override) = ((override)[0]);
 macro OVERRIDE_POS(override) = ((override)[(override).length - 2]);
 macro OVERRIDE_SUBJECT(override) = ((override)[(override).length - 1]);
 # 1-based so index of 1 returns the first capture
 macro OVERRIDE_CAPTURE(override, index) = ((override)[(index)]);
 
+# PropertyDescriptor return value indices - must match
+# PropertyDescriptorIndices in runtime-object.cc.
+define IS_ACCESSOR_INDEX = 0;
+define VALUE_INDEX = 1;
+define GETTER_INDEX = 2;
+define SETTER_INDEX = 3;
+define WRITABLE_INDEX = 4;
+define ENUMERABLE_INDEX = 5;
+define CONFIGURABLE_INDEX = 6;
+
 # For messages.js
 # Matches Script::Type from objects.h
 define TYPE_NATIVE = 0;
 define TYPE_EXTENSION = 1;
 define TYPE_NORMAL = 2;
 
 # Matches Script::CompilationType from objects.h
 define COMPILATION_TYPE_HOST = 0;
 define COMPILATION_TYPE_EVAL = 1;
 define COMPILATION_TYPE_JSON = 2;
@@ skipping 46 matching lines @@
 define kNotShared = false;
 define kShared = true;
 
 # UseCounters from include/v8.h
 define kUseAsm = 0;
 define kBreakIterator = 1;
 define kLegacyConst = 2;
 define kMarkDequeOverflow = 3;
 define kStoreBufferOverflow = 4;
 define kSlotsBufferOverflow = 5;
+define kObjectObserve = 6;
 define kForcedGC = 7;
 define kSloppyMode = 8;
 define kStrictMode = 9;
 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;
 define kHtmlCommentInExternalScript = 20;
 define kHtmlComment = 21;
 define kSloppyModeBlockScopedFunctionRedefinition = 22;
 define kForInInitializer = 23;
 define kArrayProtectorDirtied = 24;
 define kArraySpeciesModified = 25;
 define kArrayPrototypeConstructorModified = 26;
 define kArrayInstanceProtoModified = 27;
 define kArrayInstanceConstructorModified = 28;
 define kLegacyFunctionDeclaration = 29;
 define kRegExpPrototypeSourceGetter = 30;
 define kRegExpPrototypeOldFlagGetter = 31;