Modify testing to only record validation pass/fail

* Changed unit tests to only record known the validation pass/fail
status
 * errors are output as part of the failure message if the result is
 unexpected
 * can turn off validation for each test individually
* Moved some SPV_KHR_vulkan_memory_model tests to be compiled for Vulkan
1.1

Test/baseResults/hlsl.intrinsics.comp.out

@@ -715,10 +715,7 @@ local_size = (1, 1, 1)
 0:?     'inU0' (layout( location=3) in 4-component vector of uint)
 0:?     'inU1' (layout( location=4) in 4-component vector of uint)
 
-error: SPIRV-Tools Validation Errors
-error: Expected operand to be vector bool: All
-  %64 = OpAll %bool %63
-
+Validation failed
 // Module Version 10000
 // Generated by (magic number): 80007
 // Id's are bound by 265