Remove all harmony runtime flags which shipped in M51

src/js/regexp.js

Index: src/js/regexp.js
diff --git a/src/js/regexp.js b/src/js/regexp.js
index ef6a4aed053b3d15f23056a64c4540112be08337..6031deb0d261feb8e62fdffe699c6bbaf50c0673 100644
--- a/src/js/regexp.js
+++ b/src/js/regexp.js
@@ -24,6 +24,7 @@ var MinSimple;
 var matchSymbol = utils.ImportNow("match_symbol");
 var replaceSymbol = utils.ImportNow("replace_symbol");
 var searchSymbol = utils.ImportNow("search_symbol");
+var speciesSymbol = utils.ImportNow("species_symbol");
 var splitSymbol = utils.ImportNow("split_symbol");
 var SpeciesConstructor;
 
@@ -1134,6 +1135,27 @@ function RegExpGetSticky() {
 }
 %SetForceInlineFlag(RegExpGetSticky);
 
+
+// ES6 21.2.5.15.
+function RegExpGetUnicode() {
+  if (!IS_REGEXP(this)) {
+    // TODO(littledan): Remove this RegExp compat workaround
+    if (this === GlobalRegExpPrototype) {
+      %IncrementUseCounter(kRegExpPrototypeUnicodeGetter);
+      return UNDEFINED;
+    }
+    throw MakeTypeError(kRegExpNonRegExp, "RegExp.prototype.unicode");
+  }
+  return TO_BOOLEAN(REGEXP_UNICODE(this));
+}
+%SetForceInlineFlag(RegExpGetUnicode);
+
+
+function RegExpSpecies() {
+  return this;
+}
+
+
 // -------------------------------------------------------------------
 
 %FunctionSetInstanceClassName(GlobalRegExp, 'RegExp');
@@ -1143,15 +1165,17 @@ GlobalRegExpPrototype = new GlobalObject();
     GlobalRegExp.prototype, 'constructor', GlobalRegExp, DONT_ENUM);
 %SetCode(GlobalRegExp, RegExpConstructor);
 
+utils.InstallGetter(GlobalRegExp, speciesSymbol, RegExpSpecies);
+
 utils.InstallFunctions(GlobalRegExp.prototype, DONT_ENUM, [
-  "exec", RegExpExecJS,
-  "test", RegExpTest,
+  "exec", RegExpSubclassExecJS,
+  "test", RegExpSubclassTest,
   "toString", RegExpToString,
   "compile", RegExpCompileJS,
-  matchSymbol, RegExpMatch,
-  replaceSymbol, RegExpReplace,
-  searchSymbol, RegExpSearch,

[Dan Ehrenberg, 2016/06/23 23:53:52]

RegExpMatch and RegExpSearch are now dead code.

[adamk, 2016/06/24 00:08:27]

Oops, meant to clean those up but failed. Removed.

-  splitSymbol, RegExpSplit,
+  matchSymbol, RegExpSubclassMatch,
+  replaceSymbol, RegExpSubclassReplace,
+  searchSymbol, RegExpSubclassSearch,
+  splitSymbol, RegExpSubclassSplit,
 ]);
 
 utils.InstallGetter(GlobalRegExp.prototype, 'flags', RegExpGetFlags);
@@ -1160,6 +1184,7 @@ utils.InstallGetter(GlobalRegExp.prototype, 'ignoreCase', RegExpGetIgnoreCase);
 utils.InstallGetter(GlobalRegExp.prototype, 'multiline', RegExpGetMultiline);
 utils.InstallGetter(GlobalRegExp.prototype, 'source', RegExpGetSource);
 utils.InstallGetter(GlobalRegExp.prototype, 'sticky', RegExpGetSticky);
+utils.InstallGetter(GlobalRegExp.prototype, 'unicode', RegExpGetUnicode);
 
 // The properties `input` and `$_` are aliases for each other.  When this
 // value is set the value it is set to is coerced to a string.
@@ -1234,12 +1259,6 @@ utils.Export(function(to) {
   to.RegExpExec = DoRegExpExec;
   to.RegExpInitialize = RegExpInitialize;
   to.RegExpLastMatchInfo = RegExpLastMatchInfo;
-  to.RegExpSubclassExecJS = RegExpSubclassExecJS;
-  to.RegExpSubclassMatch = RegExpSubclassMatch;
-  to.RegExpSubclassReplace = RegExpSubclassReplace;
-  to.RegExpSubclassSearch = RegExpSubclassSearch;
-  to.RegExpSubclassSplit = RegExpSubclassSplit;
-  to.RegExpSubclassTest = RegExpSubclassTest;
   to.RegExpTest = RegExpTest;
 });