Bug 1704061 - Fix FileNotFoundError code-coverage-grcov.zip.r=marco

from __future__ import absolute_import

import errno

import json

import os

import posixpath

                self.gcov_dir, self.jsvm_dir

            )

            try:

                os.makedirs(dirs["abs_blob_upload_dir"])

            except OSError as e:

                if e.errno != errno.EEXIST:

                    raise

            # Zip the grcov output and upload it.

            grcov_zip_path = os.path.join(

                dirs["abs_blob_upload_dir"], "code-coverage-grcov.zip"