Decide ParseLazy vs ParseProgram based on is_toplevel

src/parsing/parser.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/parsing/parser.h"
 
 #include <memory>
 
 #include "src/api.h"
 #include "src/ast/ast-expression-rewriter.h"
@@ skipping 3806 matching lines @@
 
 
 bool Parser::Parse(ParseInfo* info) {
   DCHECK(info->literal() == NULL);
   FunctionLiteral* result = NULL;
   // Ok to use Isolate here; this function is only called in the main thread.
   DCHECK(parsing_on_main_thread_);
   Isolate* isolate = info->isolate();
   pre_parse_timer_ = isolate->counters()->pre_parse();
 
-  if (!info->shared_info().is_null() && info->shared_info()->is_function()) {
-    result = ParseLazy(isolate, info);
-  } else {
+  if (info->is_toplevel()) {
     SetCachedData(info);
     result = ParseProgram(isolate, info);
+  } else {
+    result = ParseLazy(isolate, info);
   }
   info->set_literal(result);
 
   Internalize(isolate, info->script(), result == NULL);
   return (result != NULL);
 }
 
 
 void Parser::ParseOnBackground(ParseInfo* info) {
   parsing_on_main_thread_ = false;
@@ skipping 1613 matching lines @@
 
   return final_loop;
 }
 
 #undef CHECK_OK
 #undef CHECK_OK_VOID
 #undef CHECK_FAILED
 
 }  // namespace internal
 }  // namespace v8