Vulkan: Add precision fix to SPIR-V transformation validation The SPIR-V transformation validation ASSERT was done before varying precision fixes were determined. This change reorders the operations such that the ASSERT also includes varying precision fix information. Bug: angleproject:7046 Change-Id: I1685a41cda080ac128025aa84a783984042e7c4e Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3488559 Reviewed-by: mohan maiya <m.maiya@samsung.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>