[Piglit] Question about POST processing test profiles

[Timothy Arceri]

Hi Dylan/other python pros,

I'm trying to create a new no_error profile for running tests that are 
suitable for use with KHR_no_error. I want to flag KHR_no_error support 
in the c code of the piglit tests rather than adding a field to the 
python "all" profile as it seem much cleaner to me, and should be easier 
to automatically pick if it's safe to run or skip a shader_runner test.

Anyway to do this I want to base the no_error profile off the all 
profile and basically just append a "-khr_no_error" command line arg to 
all tests. However my sucking at python is getting in the way, I'm 
having trouble deciphering how the test groups/lists work.

Can someone please advise how I could add "-khr_no_error" to the command 
for each test?

Thanks for your time,
Tim