[Bug fortran/98426] find_symbol in module.c traverses O(N) part of a search tree

[matthew.thompson at nasa dot gov via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98426

--- Comment #13 from Matt Thompson <matthew.thompson at nasa dot gov> ---
Okay I have a new reproducer that I'll attach here. It uses the random names.

I see the same behavior:

IFX 2024.1:

Number of Modules | Build Time
----------------- | ----------
               10 |   0.100479
               20 |    0.15462
               30 |   0.209833
               40 |   0.259712
               50 |   0.314469

GCC 13.2:

Number of Modules | Build Time
----------------- | ----------
               10 |    1.55647
               20 |    6.41986
               30 |    12.7215
               40 |    25.4188
               50 |    36.3083