ParserBase should accept ESCAPED_STRICT_RESERVED_WORD as an identifier

src/parsing/parser-base.h

Index: src/parsing/parser-base.h
diff --git a/src/parsing/parser-base.h b/src/parsing/parser-base.h
index acea162a003c06bbe58299b2bbdb3e079d46ecd0..a54bab65b928cab2b04a5dbcd707819046112839 100644
--- a/src/parsing/parser-base.h
+++ b/src/parsing/parser-base.h
@@ -811,6 +811,7 @@ class ParserBase {
   bool is_any_identifier(Token::Value token) {
     return token == Token::IDENTIFIER || token == Token::ENUM ||
            token == Token::AWAIT || token == Token::ASYNC ||
+           token == Token::ESCAPED_STRICT_RESERVED_WORD ||
            token == Token::FUTURE_STRICT_RESERVED_WORD || token == Token::LET ||
            token == Token::STATIC || token == Token::YIELD;
   }
@@ -1681,7 +1682,8 @@ ParserBase<Impl>::ParseIdentifierOrStrictReservedWord(
                                     !IsAsyncFunction(function_kind)) ||
       next == Token::ASYNC) {
     *is_strict_reserved = false;
-  } else if (next == Token::FUTURE_STRICT_RESERVED_WORD || next == Token::LET ||
+  } else if (next == Token::ESCAPED_STRICT_RESERVED_WORD ||
+             next == Token::FUTURE_STRICT_RESERVED_WORD || next == Token::LET ||
              next == Token::STATIC ||
              (next == Token::YIELD && !IsGeneratorFunction(function_kind))) {
     *is_strict_reserved = true;