[llvm] Emit DW_OP_lit0/1 for constant boolean values (PR #155539)

[Michael Buch via llvm-commits]

Michael137 wrote:

@laxmansole are you planning to re-submit this? Not entirely sure what the issue is from the logs:
```
/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/test/DebugInfo/debug-bool-const-location.ll:5:10: error: CHECK: expected string not found in input
; CHECK: {{.*}} DW_OP_lit1
         ^
```

But it could be the `-O3` that you're using in the test. Any reason you need optimizations turned on?

https://github.com/llvm/llvm-project/pull/155539