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Wraps calls to the crash reporter in reportCrashError that is called
whenever there is a console.error, in doing so we need to build up
the error from any number of arguments since console.error can be
called with (...*).

Also adds this for onerror & unhandledrejection handlers in trusted
context & tests.

I think there might be some errors in the trusted context we aren't
picking up on because I don't think we guarantee the app initializes
before these errors occur and so the error reporter (in index.ts)
wouldn't be initialized. This cl makes console.error use
crashReportPrivate.reportError() so we can keep track of such errors.

This may lead to launch code such as LaunchWithDirectory not erroring
which may be related to b/160104958.

Bugs: b/156205603
Change-Id: I404e870a9786ebe5371409c963a5140381d59126
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2301652Reviewed-by: Trent Apted <tapted@chromium.org>
Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Commit-Queue: David Lei <dlei@google.com>
Cr-Commit-Position: refs/heads/master@{#790636}