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passes the test argument in promise_test and async_test
so it can be used to add cleanup.
Change done with a jscodeshift codemod that detects
there were no arguments to promise_test (or async_test):

export default function transformer(file, api) {
  const j = api.jscodeshift;
  return j(file.source)
    // .find(j.CallExpression)
    .find(j.CallExpression, {callee: {type: 'Identifier', name: 'promise_test'}})
    .forEach(path => {
        if (path.value.arguments[0].params.length === 0) {
          path.value.arguments[0].params.push(j.identifier('t'));
        }
    })
    .toSource();
};

BUG=836871

Change-Id: Ie7dd7fb0dd8a4da6c4c00f3616fd41d1d47854ef
Reviewed-on: https://chromium-review.googlesource.com/1047674Reviewed-by: Harald Alvestrand <hta@chromium.org>
Commit-Queue: Harald Alvestrand <hta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#556711}