Make 'generate_summaries' depend on the whole skd/lib folder.

utils/dartanalyzer/dartanalyzer.gyp

Index: utils/dartanalyzer/dartanalyzer.gyp
diff --git a/utils/dartanalyzer/dartanalyzer.gyp b/utils/dartanalyzer/dartanalyzer.gyp
index 74dbf43fb10f72ce5e7cb15c6216e0024ab74f1f..6aec554a1b0c4a7ff32f48900d33386273933a21 100644
--- a/utils/dartanalyzer/dartanalyzer.gyp
+++ b/utils/dartanalyzer/dartanalyzer.gyp
@@ -34,8 +34,8 @@
           'action_name': 'generate_summaries',
           'inputs': [
             '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)dart<(EXECUTABLE_SUFFIX)',
-            '../../sdk/lib/_internal/sdk_library_metadata/lib/libraries.dart',
             '<(SHARED_INTERMEDIATE_DIR)/packages.stamp',
+            '<!@(["python", "../../tools/list_files.py", "\\.dart$", "../../sdk/lib"])',

[Bill Hesse, 2016/03/01 08:27:01]

We have a problem when certain lists are too long on MacOS.  I'm not sure if it
is only in command lines, or if this could be a problem.  I'll try this on mac
for you.

             '<!@(["python", "../../tools/list_files.py", "\\.dart$", "../../pkg/analyzer"])',
           ],
           'outputs': [