This workaround is needed when the GL driver is less than 4.3 (all
MacOS). The driver will generate many errors during execution without
this enabled which blocks GL driver error checking.

Add additional workarounds for Intel drivers that need a sufficiently
large primitive restart index when doing DrawArrays calls.

BUG=angleproject:3997

Change-Id: Idd293ff1dbc0a3609b11ea1d6b30da0a99e8f5c5
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2141714
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>