Teach Scopes whether they will end up being lazily compiled or not

src/parsing/preparser.h

Index: src/parsing/preparser.h
diff --git a/src/parsing/preparser.h b/src/parsing/preparser.h
index 4b5474854c3bd16342ed206feb5f700971d408a7..bc85e861c9675d26e918c47e93d5b49a39ccf495 100644
--- a/src/parsing/preparser.h
+++ b/src/parsing/preparser.h
@@ -862,6 +862,11 @@ class PreParser : public ParserBase<PreParser> {
       LanguageMode language_mode, bool* ok);
   LazyParsingResult ParseLazyFunctionLiteralBody(bool may_abort, bool* ok);
 
+  bool ShouldCompileLazily(PreParserExpression fun) {
+    USE(fun);
+    return true;
+  }
+
   struct TemplateLiteralState {};
 
   V8_INLINE TemplateLiteralState OpenTemplateLiteral(int pos) {