Bug 1822882 - Update irregexp to 49d868fb32eb9982980ed0f6d0925572d425ce94 r=iain

Differential Revision: https://phabricator.services.mozilla.com/D172814

js/src/irregexp/imported/regexp-parser.cc

@@ -1313,26 +1313,6 @@ RegExpParserState* RegExpParserImpl<CharT>::ParseOpenParenthesis(
       state->builder()->flags(), zone());
 }
 
-#ifdef DEBUG
-namespace {
-
-bool IsSpecialClassEscape(base::uc32 c) {
-  switch (c) {
-    case 'd':
-    case 'D':
-    case 's':
-    case 'S':
-    case 'w':
-    case 'W':
-      return true;
-    default:
-      return false;
-  }
-}
-
-}  // namespace
-#endif
-
 // In order to know whether an escape is a backreference or not we have to scan
 // the entire regexp and find the number of capturing parentheses.  However we
 // don't want to scan the regexp twice unless it is necessary.  This mini-parser
@@ -2198,7 +2178,7 @@ base::uc32 RegExpParserImpl<CharT>::ParseCharacterEscape(
     InClassEscapeState in_class_escape_state,
     bool* is_escaped_unicode_character) {
   DCHECK_EQ('\\', current());
-  DCHECK(has_next() && !IsSpecialClassEscape(Next()));
+  DCHECK(has_next());
 
   Advance();
 
@@ -2569,7 +2549,6 @@ RegExpTree* RegExpParserImpl<CharT>::ParseClassStringDisjunction(
   // We don't need to handle missing closing '}' here.
   // If the character class is correctly closed, ParseClassSetCharacter will
   // report an error.
-  DCHECK_EQ(current(), '}');
   Advance();
   return nullptr;
 }

js/src/irregexp/imported/regexp.h

@@ -155,6 +155,7 @@ class RegExp final : public AllStatic {
   V8_WARN_UNUSED_RESULT
   static MaybeHandle<Object> ThrowRegExpException(Isolate* isolate,
                                                   Handle<JSRegExp> re,
+                                                  RegExpFlags flags,
                                                   Handle<String> pattern,
                                                   RegExpError error);
   static void ThrowRegExpException(Isolate* isolate, Handle<JSRegExp> re,

js/src/irregexp/moz.yaml

@@ -9,8 +9,8 @@ origin:
   description: A fast regular expression engine from V8
   url: https://v8.dev
 
-  release: c3d7f93e852001dd1ddb23cfb20b16bd868c8965 (Mon Feb 13 17:17:00 2023).
-  revision: c3d7f93e852001dd1ddb23cfb20b16bd868c8965
+  release: 49d868fb32eb9982980ed0f6d0925572d425ce94 (Thu Mar 16 18:05:16 2023).
+  revision: 49d868fb32eb9982980ed0f6d0925572d425ce94
 
   license: BSD-3-Clause
   license-file: LICENSE.v8