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  'error_1',
  'subpackage1/dummy_subpackage1.cc',
  'subpackage1'),
 ('BUILD.gn',
  '19',
  'error_1',
  'subpackage1/dummy_subpackage1.h',
  'subpackage1'),
 ('BUILD.gn',
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  'subpackage1'),
 ('BUILD.gn',
  '26',
  'error_2',
  'subpackage1/dummy_subpackage2.h',
  'subpackage1')]