build: add explicit dependency on path recipe module and roll https://codereview.chromium.org/19204…

scripts/slave/recipe_modules/test_results/example.expected/upload_without_degrading_failures.json

 [
   {
     "cmd": [
       "python",
       "-u",
-      "Path('RECIPE_MODULE[build::test_results]', 'resources', 'upload_gtest_test_results.py')",
+      "RECIPE_MODULE[build::test_results]/resources/upload_gtest_test_results.py",
       "--input-gtest-json",
       "{\"disabled_tests\": [\"Disabled.Test\"], \"per_iteration_data\": [{\"Skipped.Test\": [{\"elapsed_time_ms\": 0, \"status\": \"SKIPPED\"}]}]}",
       "--master-name",
       "example.master",
       "--builder-name",
       "ExampleBuilder",
       "--build-number",
       "123",
       "--test-type",
       "example-test-type",
       "--test-results-server",
       "localhost",
       "--chrome-revision",
       "2"
     ],
     "name": "Upload to test-results [example-test-type]",
     "~followup_annotations": [
       "step returned non-zero exit code: 1",
       "@@@STEP_FAILURE@@@"
     ]
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]