[parser] improve inferred function names for async arrow functions

src/parsing/preparser.h

Index: src/parsing/preparser.h
diff --git a/src/parsing/preparser.h b/src/parsing/preparser.h
index 26ddf233b4f3a91663400c4f8f097c297b1a1e3f..38298f2cd36b906f0482b264db1c9ba1688824bf 100644
--- a/src/parsing/preparser.h
+++ b/src/parsing/preparser.h
@@ -830,9 +830,9 @@ class PreParserTraits {
     return PreParserExpression::Default();
   }
 
-  static PreParserExpression ExpressionFromIdentifier(PreParserIdentifier name,
-                                                      int start_position,
-                                                      int end_position) {
+  static PreParserExpression ExpressionFromIdentifier(
+      PreParserIdentifier name, int start_position, int end_position,
+      InferName = InferName::Yes) {
     return PreParserExpression::FromIdentifier(name);
   }