Split parsing of functions and top-level code into two separate methods

src/v8.gyp

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 1056 matching lines @@
         'parsing/expression-classifier.h',
         'parsing/func-name-inferrer.cc',
         'parsing/func-name-inferrer.h',
         'parsing/parameter-initializer-rewriter.cc',
         'parsing/parameter-initializer-rewriter.h',
         'parsing/parse-info.cc',
         'parsing/parse-info.h',
         'parsing/parser-base.h',
         'parsing/parser.cc',
         'parsing/parser.h',
+        'parsing/parsing.cc',
+        'parsing/parsing.h',
         'parsing/pattern-rewriter.cc',
         'parsing/preparse-data-format.h',
         'parsing/preparse-data.cc',
         'parsing/preparse-data.h',
         'parsing/preparser.cc',
         'parsing/preparser.h',
         'parsing/rewriter.cc',
         'parsing/rewriter.h',
         'parsing/scanner-character-streams.cc',
         'parsing/scanner-character-streams.h',
@@ skipping 1384 matching lines @@
       'conditions': [
         ['want_separate_host_toolset_mkpeephole==1', {
           'toolsets': ['host'],
         }, {
           'toolsets': ['target'],
         }],
       ],
     },
   ],
 }