Also add test for GL_DYNAMIC_DRAW and GL_STREAM_DRAW with vertex
color data updating before each draw call to make sure index range
is retrieved correctly.

Bug: angleproject:3402, angleproject:3911
Change-Id: I5f209292b6e316e4b50505a98b361eb8761a7d6b
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2162132Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Shrek Shao <shrekshao@google.com>
Commit-Queue: Shrek Shao <shrekshao@google.com>