Fix another site where a stack-allocated character was treated as a

one-element character array.  This was safe at this site but
potentially confusing.

BUG=17103

Review URL: http://codereview.chromium.org/159072

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2511 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/interpreter-irregexp.cc

@@ -51,9 +51,11 @@ static bool BackRefMatchesNoCase(int from,
     unibrow::uchar old_char = subject[from++];
     unibrow::uchar new_char = subject[current++];
     if (old_char == new_char) continue;
-    interp_canonicalize.get(old_char, '\0', &old_char);
-    interp_canonicalize.get(new_char, '\0', &new_char);
-    if (old_char != new_char) {
+    unibrow::uchar old_string[1] = { old_char };
+    unibrow::uchar new_string[1] = { new_char };
+    interp_canonicalize.get(old_char, '\0', old_string);
+    interp_canonicalize.get(new_char, '\0', new_string);
+    if (old_string[0] != new_string[0]) {
       return false;
     }
   }