Simplify Scanner bookmarking.

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 3023 matching lines @@
       Scanner::BookmarkScope bookmark(scanner());
       bookmark.Set();
       LazyParsingResult result =
           SkipLazyFunctionBody(&materialized_literal_count,
                                &expected_property_count, true, CHECK_OK);
 
       materialized_literal_count += formals.materialized_literals_count +
                                     function_state.materialized_literal_count();
 
       if (result == kLazyParsingAborted) {
-        bookmark.Reset();
+        bookmark.Apply();
         // Trigger eager (re-)parsing, just below this block.
         is_lazily_parsed = false;
 
         // This is probably an initialization function. Inform the compiler it
         // should also eager-compile this function, and that we expect it to be
         // used once.
         eager_compile_hint = FunctionLiteral::kShouldEagerCompile;
         should_be_used_once_hint = true;
       }
     }
@@ skipping 2770 matching lines @@
 
   return final_loop;
 }
 
 #undef CHECK_OK
 #undef CHECK_OK_VOID
 #undef CHECK_FAILED
 
 }  // namespace internal
 }  // namespace v8