[PATCH] D98847: [flang][driver] Fix `-fdebug-dump-provenance`

[Andrzej Warzynski via Phabricator via llvm-commits]

awarzynski created this revision.
Herald added a reviewer: sscalpone.
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The `-fdebug-dump-provenance` flag is meant to be used with
`needProvenanceRangeToCharBlockMappings` set to `true`. This way, extra
mapping is generated that allows e.g. IDEs to retrieve symbol's scope
(offset into cooked character stream) based on symbol's source code
location. This patch makes sure that this option is set when
using `-fdebug-dump-provenance`.

With this patch, the implementation of  `-fdebug-dump-provenance` in
`flang-new -fc1` becomes consistent with `f18`. The corresponding LIT
test is updated so that it can be shared with `f18`. I refined it a bit
so that:

- it becomes a frontend-only test
- it's stricter about the expected output


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D98847

Files:
  flang/include/flang/Frontend/FrontendOptions.h
  flang/lib/Frontend/CompilerInvocation.cpp
  flang/test/Driver/debug-provenance.f90

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