Reapply "Dart2js testing: Add prefix files when running dart2js output on d8 or jsshell.""

dart.gyp

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'most',
       'type': 'none',
       'dependencies': [
@@ skipping 30 matching lines @@
         'utils/compiler/compiler.gyp:dart2js',
         'utils/pub/pub.gyp:pub',
         'dartfmt',
         'analyzer',
       ],
       'actions': [
         {
           'action_name': 'create_sdk_py',
           'inputs': [
             '<!@(["python", "tools/list_files.py", "\\.dart$", "sdk/lib"])',
+            '<!@(["python", "tools/list_files.py", "", '
+                '"sdk/lib/_internal/lib/preambles"])',
             '<!@(["python", "tools/list_files.py", "", "sdk/bin"])',
             'tools/create_sdk.py',
             '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)dart<(EXECUTABLE_SUFFIX)',
             '<(SHARED_INTERMEDIATE_DIR)/dart2js.dart.snapshot',
             '<(SHARED_INTERMEDIATE_DIR)/utils_wrapper.dart.snapshot',
             '<(SHARED_INTERMEDIATE_DIR)/pub.dart.snapshot',
             '<(PRODUCT_DIR)/dartanalyzer/dartanalyzer.jar',
             '<(SHARED_INTERMEDIATE_DIR)/dartfmt.dart.snapshot',
             'tools/VERSION'
           ],
@@ skipping 132 matching lines @@
     {
       'target_name': 'try',
       'type': 'none',
       'dependencies': [
         'create_sdk',
         'site/try/build_try.gyp:try_site',
       ],
     },
   ],
 }