As outlined in a previous RFC, the test/ASTMerge/Inputs folder is getting full and the tests are starting to become interdependent. This is undesirable because
- it makes it harder to write new tests
- it makes it harder to figure out at a glance what old tests are doing, and
- it adds the risk of breaking one test while changing a different one, because of the interdependencies.
To fix this, according to the conversation in the RFC, I have changed the layout from
a.c Inputs/a1.c Inputs/a2.c
a/test.c a/a1.c a/a2.c
for all existing tests. I have also eliminated interdependencies (by replicating the input files for each test that uses them) and made a little lit.cfg that makes sure that lit only processes test.c/test.m/test.cpp/test.mm.