[regexp] fix /\W/ui wrt \u017f and \u212a.

src/regexp/regexp-ast.h

Index: src/regexp/regexp-ast.h
diff --git a/src/regexp/regexp-ast.h b/src/regexp/regexp-ast.h
index a45d083cdbde9c4a2bf319ed00db4bbfc447d727..f405d5a0fc0e03bce2ba1dfcd320103b71c3c742 100644
--- a/src/regexp/regexp-ast.h
+++ b/src/regexp/regexp-ast.h
@@ -80,7 +80,7 @@ class CharacterRange {
   // For compatibility with the CHECK_OK macro
   CharacterRange(void* null) { DCHECK_NULL(null); }  // NOLINT
   static void AddClassEscape(uc16 type, ZoneList<CharacterRange>* ranges,
-                             Zone* zone);
+                             bool add_unicode_case_equivalents, Zone* zone);

[jgruber, 2017/02/28 13:44:56]

What if we add an AddClassEscape overload that implements additional handling
for add_unicode_case_equivalents? That way we could avoid having to touch all
unrelated use sites.

[Yang, 2017/02/28 14:26:11]

Done.

   static Vector<const int> GetWordBounds();
   static inline CharacterRange Singleton(uc32 value) {
     return CharacterRange(value, value);