Move parenthesized_function_ to ParserBase.

src/parser.h

Index: src/parser.h
diff --git a/src/parser.h b/src/parser.h
index c2dd77fe2a090120213bca045581876e78ac8448..1b1b55f45e2a72bf590c44ec4c5dd13a16907c0d 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -785,11 +785,6 @@ class Parser : public ParserBase<ParserTraits> {
   FuncNameInferrer* fni_;
 
   Mode mode_;
-  // If true, the next (and immediately following) function literal is
-  // preceded by a parenthesis.
-  // Heuristically that means that the function will be called immediately,
-  // so never lazily compile it.
-  bool parenthesized_function_;
 
   Zone* zone_;
   CompilationInfo* info_;