Remove dynamic indexing for swizzled vectors

A workaround for vector-dynamic-indexing-swizzled-lvalue.html.

Bug: 709351
Change-Id: I544583b26055a8ff2d62e81fcf06bbde769aa886
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1877817
Commit-Queue: Jie A Chen <jie.a.chen@intel.com>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#709381}
4 files changed