[PATCHv5] Fix range end handling of inlined subroutines

[Bernd Edlinger]

Hi,

this is an updated version of my patch that was originally only intended
to fix the issues with inline functions in the same file.  That needed
re-basing anyway, because of a merge conflict.

I removed the code that does the special handling of end sequence
markers in record_line now, since it seems to cause more problems than
it solves.

I believe it will fix the regression that Louis pointed out, and
should fix the regression that Andrew wanted to fix with his
patch:

[PATCH 2/2] gdb: Preserve is-stmt lines when switch between files
https://marc.info/?l=gdb-patches&m=158595247916817&w=2

So I hope that will not be necessary after this.

There is a theoretic issue with line numbers at the end
of a function, these could coincidentally have the same
PC as the following function.  That might need more work
to solve that, in the moment I have not yet looked at
tracking that down.


Thanks
Bernd.
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