[test] Make test runner use shell

Bug: v8:8889
Change-Id: If0a8e71dca2ae5660481ba78bf79eb311d60c9e4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1495557
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60079}

tools/testrunner/local/command.py

@@ -155,6 +155,25 @@ class BaseCommand(object):
 
 
 class PosixCommand(BaseCommand):
+  # TODO(machenbach): Use base process start without shell once
+  # https://crbug.com/v8/8889 is resolved.
+  def _start_process(self):
+    def wrapped(arg):
+      if set('() \'"') & set(arg):
+        return "'%s'" % arg.replace("'", "'\"'\"'")
+      return arg
+    try:
+      return subprocess.Popen(
+        args=' '.join(map(wrapped, self._get_popen_args())),
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
+        env=self._get_env(),
+        shell=True,
+      )
+    except Exception as e:
+      sys.stderr.write('Error executing: %s\n' % self)
+      raise e
+
   def _kill_process(self, process):
     process.kill()