Need to check that a VBO is actually bound (or rather no client
arrays are bound) and return appropriate error.

Test:
angle_deqp_khr_gles31 --use-angle=swiftshader --gtest_filter=dEQP.KHR_GLES31/core_draw_indirect_negativenoVBOarrays

Bug: angleproject:3564
Change-Id: Ic200993f9afcc3b43706ac0b509b10fa905857f7
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1922303
Commit-Queue: Courtney Goeltzenleuchter <courtneygo@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tobin Ehlis <tobine@google.com>