[parser] improve inferred function names for async arrow functions

src/parsing/parser.h

Index: src/parsing/parser.h
diff --git a/src/parsing/parser.h b/src/parsing/parser.h
index d9550f223dc364858500a84b8a347937e498b8f9..b82a5531caeaf2416fae3855c549127e61869cc3 100644
--- a/src/parsing/parser.h
+++ b/src/parsing/parser.h
@@ -557,7 +557,8 @@ class ParserTraits {
   Literal* ExpressionFromLiteral(Token::Value token, int pos, Scanner* scanner,
                                  AstNodeFactory* factory);
   Expression* ExpressionFromIdentifier(const AstRawString* name,
-                                       int start_position, int end_position);
+                                       int start_position, int end_position,
+                                       InferName = InferName::Yes);
   Expression* ExpressionFromString(int pos, Scanner* scanner,
                                    AstNodeFactory* factory);
   Expression* GetIterator(Expression* iterable, AstNodeFactory* factory,