[PATCH] Fortran: fix assignment to allocatable scalar polymorphic component [PR121616]

[Harald Anlauf]

Am 15.09.25 um 22:32 schrieb Mikael Morin:
> Le 15/09/2025 à 21:33, Harald Anlauf a écrit :
>> I've been wondering if there is some strategy to "differentially"
>> debug the frontend: using a simple testcase, and replacing just
>> a single token by another one, and see when and how the path
>> splits and maybe rejoins later.
>>
> Maybe you can use code coverage data, but I'm not aware of any ready- 
> made diff tool for it.  gcov can produce json data with the --json- 
> format argument, that can be a good starting point.

I have no idea how to use that.

What I meant: the modified token may show up e.g. in a variable decl,
and when it is passed to some function in trans*.cc, that tiny
difference evolves etc.

I just get overwhelmed by all the forest I usually end up with,
and hardly see the tiny little twig that counts.