Rudimentary assertion expansion

src/char-predicates-inl.h

Index: src/char-predicates-inl.h
diff --git a/src/char-predicates-inl.h b/src/char-predicates-inl.h
index b575bdfe58228008f1f728b42ed29aa74c6e51a4..3ef2f91616904f79b577c4c5eb1558b83aff63b3 100644
--- a/src/char-predicates-inl.h
+++ b/src/char-predicates-inl.h
@@ -59,6 +59,25 @@ inline bool IsHexDigit(uc32 c) {
 }
 
 
+inline bool IsRegExpWord(uc16 c) {
+  return ('a' <= c && c <= 'z')
+      || ('A' <= c && c <= 'Z')
+      || ('0' <= c && c <= '9')
+      || (c == '_');
+}
+
+
+inline bool IsRegExpNewline(uc16 c) {
+  switch (c) {
+    //   CR           LF           LS           PS
+    case 0x000A: case 0x000D: case 0x2028: case 0x2029:
+      return false;
+    default:
+      return true;
+  }
+}
+
+
 } }  // namespace v8::internal
 
 #endif  // V8_CHAR_PREDICATES_INL_H_