Move JSSyntaxRegExp to core as a private member. This removes the last refrences to dart:coreimpl.

runtime/vm/vm.gypi

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 {
   'variables': {
     'builtin_in_cc_file': '../bin/builtin_in.cc',
     'corelib_cc_file': '<(SHARED_INTERMEDIATE_DIR)/corelib_gen.cc',
     'corelib_patch_cc_file': '<(SHARED_INTERMEDIATE_DIR)/corelib_patch_gen.cc',
-    'corelib_impl_cc_file': '<(SHARED_INTERMEDIATE_DIR)/corelib_impl_gen.cc',
-    'corelib_impl_patch_cc_file': '<(SHARED_INTERMEDIATE_DIR)/corelib_impl_patch_gen.cc',
     'collection_cc_file': '<(SHARED_INTERMEDIATE_DIR)/collection_gen.cc',
     'math_cc_file': '<(SHARED_INTERMEDIATE_DIR)/math_gen.cc',
     'math_patch_cc_file': '<(SHARED_INTERMEDIATE_DIR)/math_patch_gen.cc',
     'mirrors_cc_file': '<(SHARED_INTERMEDIATE_DIR)/mirrors_gen.cc',
     'mirrors_patch_cc_file': '<(SHARED_INTERMEDIATE_DIR)/mirrors_patch_gen.cc',
     'isolate_cc_file': '<(SHARED_INTERMEDIATE_DIR)/isolate_gen.cc',
     'isolate_patch_cc_file': '<(SHARED_INTERMEDIATE_DIR)/isolate_patch_gen.cc',
     'scalarlist_cc_file': '<(SHARED_INTERMEDIATE_DIR)/scalarlist_gen.cc',
     'scalarlist_patch_cc_file': '<(SHARED_INTERMEDIATE_DIR)/scalarlist_patch_gen.cc',
     'snapshot_test_dat_file': '<(SHARED_INTERMEDIATE_DIR)/snapshot_test.dat',
@@ skipping 38 matching lines @@
             ['exclude', 'gdbjit.cc'],
           ],
        }]],
     },
     {
       'target_name': 'libdart_lib_withcore',
       'type': 'static_library',
       'dependencies': [
         'generate_corelib_cc_file',
         'generate_corelib_patch_cc_file',
-        'generate_corelib_impl_cc_file',
-        'generate_corelib_impl_patch_cc_file',
         'generate_collection_cc_file',
         'generate_math_cc_file',
         'generate_math_patch_cc_file',
         'generate_isolate_cc_file',
         'generate_isolate_patch_cc_file',
         'generate_mirrors_cc_file',
         'generate_mirrors_patch_cc_file',
         'generate_scalarlist_cc_file',
         'generate_scalarlist_patch_cc_file',
       ],
       'includes': [
         '../lib/lib_sources.gypi',
-        '../lib/lib_impl_sources.gypi',
         '../lib/isolate_sources.gypi',
         '../lib/mirrors_sources.gypi',
         '../lib/scalarlist_sources.gypi',
       ],
       'sources': [
         'bootstrap.cc',
         # Include generated source files.
         '<(corelib_cc_file)',
         '<(corelib_patch_cc_file)',
-        '<(corelib_impl_cc_file)',
-        '<(corelib_impl_patch_cc_file)',
         '<(collection_cc_file)',
         '<(math_cc_file)',
         '<(math_patch_cc_file)',
         '<(isolate_cc_file)',
         '<(isolate_patch_cc_file)',
         '<(mirrors_cc_file)',
         '<(mirrors_patch_cc_file)',
         '<(scalarlist_cc_file)',
         '<(scalarlist_patch_cc_file)',
       ],
       'include_dirs': [
         '..',
       ],
     },
     {
       'target_name': 'libdart_lib',
       'type': 'static_library',
       'includes': [
         '../lib/lib_sources.gypi',
-        '../lib/lib_impl_sources.gypi',
         '../lib/isolate_sources.gypi',
         '../lib/mirrors_sources.gypi',
         '../lib/scalarlist_sources.gypi',
       ],
       'sources': [
         'bootstrap_nocorelib.cc',
       ],
       'include_dirs': [
         '..',
       ],
@@ skipping 68 matching lines @@
             '--input_cc', '<(builtin_in_cc_file)',
             '--include', 'vm/bootstrap.h',
             '--var_name', 'dart::Bootstrap::corelib_patch_',
             '<@(_sources)',
           ],
           'message': 'Generating ''<(corelib_patch_cc_file)'' file.'
         },
       ]
     },
     {
-      'target_name': 'generate_corelib_impl_cc_file',
-      'type': 'none',
-      'includes': [
-        # Load the shared core library sources.
-        '../../sdk/lib/coreimpl/corelib_impl_sources.gypi',
-      ],
-      'sources/': [
-        # Exclude all .[cc|h] files.
-        # This is only here for reference. Excludes happen after
-        # variable expansion, so the script has to do its own
-        # exclude processing of the sources being passed.
-        ['exclude', '\\.cc|h$'],
-      ],
-      'actions': [
-        {
-          'action_name': 'generate_corelib_impl_cc',
-          'inputs': [
-            '../tools/create_string_literal.py',
-            '<(builtin_in_cc_file)',
-            '<@(_sources)',
-          ],
-          'outputs': [
-            '<(corelib_impl_cc_file)',
-          ],
-          'action': [
-            'python',
-            'tools/create_string_literal.py',
-            '--output', '<(corelib_impl_cc_file)',
-            '--input_cc', '<(builtin_in_cc_file)',
-            '--include', 'vm/bootstrap.h',
-            '--var_name', 'dart::Bootstrap::corelib_impl_source_',
-            '<@(_sources)',
-          ],
-          'message': 'Generating ''<(corelib_impl_cc_file)'' file.'
-        },
-      ]
-    },
-    {
-      'target_name': 'generate_corelib_impl_patch_cc_file',
-      'type': 'none',
-      'includes': [
-        # Load the runtime implementation sources.
-        '../lib/lib_impl_sources.gypi',
-      ],
-      'sources/': [
-        # Exclude all .[cc|h] files.
-        # This is only here for reference. Excludes happen after
-        # variable expansion, so the script has to do its own
-        # exclude processing of the sources being passed.
-        ['exclude', '\\.cc|h$'],
-      ],
-      'actions': [
-        {
-          'action_name': 'generate_corelib_impl_patch_cc',
-          'inputs': [
-            '../tools/create_string_literal.py',
-            '<(builtin_in_cc_file)',
-            '<@(_sources)',
-          ],
-          'outputs': [
-            '<(corelib_impl_patch_cc_file)',
-          ],
-          'action': [
-            'python',
-            'tools/create_string_literal.py',
-            '--output', '<(corelib_impl_patch_cc_file)',
-            '--input_cc', '<(builtin_in_cc_file)',
-            '--include', 'vm/bootstrap.h',
-            '--var_name', 'dart::Bootstrap::corelib_impl_patch_',
-            '<@(_sources)',
-          ],
-          'message': 'Generating ''<(corelib_impl_patch_cc_file)'' file.'
-        },
-      ]
-    },
-    {
       'target_name': 'generate_collection_cc_file',
       'type': 'none',
       'includes': [
         # Load the shared collection library sources.
         '../../sdk/lib/collection/collection_sources.gypi',
       ],
       'sources/': [
         # Exclude all .[cc|h] files.
         # This is only here for reference. Excludes happen after
         # variable expansion, so the script has to do its own
@@ skipping 350 matching lines @@
             '--include', 'INTENTIONALLY_LEFT_BLANK',
             '--var_name', 'INTENTIONALLY_LEFT_BLANK_TOO',
             '<(snapshot_test_dart_file)',
           ],
           'message': 'Generating ''<(snapshot_test_dat_file)'' file.'
         },
       ]
     },
   ]
 }