Vulkan: Fix SPIR-V id assignment to user-defined webgl_* names The code was incorrectly assuming that webgl_* names are only from ANGLE variables. An explicit check that the symbols are AngleInternal was missing. Bug: b/287166117 Change-Id: Ib8140cfabd74000492d12c11163f318a9ec3b98f Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4770236 Commit-Queue: Solti Ho <solti@google.com> Auto-Submit: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Solti Ho <solti@google.com>