search for: 02606c8a

Hi, Debugging tests which make use of FileCheck can be a frustrating experience, as all input will be swallowed (even with -v flag passed to lit), and one would often need to copy-and-paste and rerun the failing command manually without piping into FileCheck. Initially I’ve assumed that this is done due to stream processing, but looking at FileCheck source code I can see that it actually gets the