Update to newest SPIRV-Tools. It checks the Vulkan rule that all resources must have a set and binding decoration, which many tests fail. So add code to set a default value of zero. Also disable PCH for Ninja builds.
diff --git a/Test/baseResults/spv.uniformArray.frag.out b/Test/baseResults/spv.uniformArray.frag.out
index ff5855c..0f9883e 100644
--- a/Test/baseResults/spv.uniformArray.frag.out
+++ b/Test/baseResults/spv.uniformArray.frag.out
@@ -18,6 +18,7 @@
Name 52 "texSampler2D"
Decorate 47(gl_FragColor) Location 0
Decorate 52(texSampler2D) DescriptorSet 0
+ Decorate 52(texSampler2D) Binding 0
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32