RepoTicketGenerationPass is not the first pass to run

[gregbedwell]

It seems the intention is that RepoTicketGenerationPass should run prior to any optimization passes, however it can be seen that some function passes actually run prior to it at clang -O2.

$ build-vs2015-ps4-ninja\bin\clang.exe --version
clang version 6.0.0 (https://github.com/SNSystems/clang-prepo.git 85663ce2d0e357504b3b92e3cdf53b39056d1f7e) (https://github.com/SNSystems/llvm-prepo.git 7abce79f1eaf0717468bce6c5bf7f2853bfd6355)
Target: x86_64-scei-ps4
Thread model: posix
InstalledDir: e:\work\prepo\build-vs2015-ps4-ninja\bin

$ type 1.cpp
int f(int x) {
  return x*2;
}


int g(int x) {
  return g(x) * g(x + 1);
}

$ build-vs2015-ps4-ninja\bin\clang.exe -c -O2 1.cpp -mllvm -opt-bisect-limit=100000
BISECT: running pass (1) Simplify the CFG on function (_Z1fi)
BISECT: running pass (2) SROA on function (_Z1fi)
BISECT: running pass (3) Early CSE on function (_Z1fi)
BISECT: running pass (4) Simplify the CFG on function (_Z1gi)
BISECT: running pass (5) SROA on function (_Z1gi)
BISECT: running pass (6) Early CSE on function (_Z1gi)
BISECT: running pass (7) RepoTicketGenerationPass on module (1.cpp)
BISECT: running pass (8) RepoPruningPass on module (1.cpp)
BISECT: running pass (9) Infer set function attributes on module (1.cpp)
BISECT: running pass (10) Interprocedural Sparse Conditional Constant Propagation on module (1.cpp)
...