[Bug c++/99426] [modules] failed to read compiled module cluster 1186: Bad file data

["nickbegg at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99426

--- Comment #8 from Nick Begg <nickbegg at gmail dot com> ---
I've been testing with the proposed patch, and I am still getting the same
errors.. 

/home/nick/inst/gcc-trunk-debug/bin/g++   -g -std=gnu++23 -Wall -Wextra
-freport-bug --param=ggc-min-expand=10000 -MD -MT
CMakeFiles/moduleMin.dir/main.cpp.o -MF CMakeFiles/moduleMin.dir/main.cpp.o.d
-fmodules-ts -fmodule-mapper=CMakeFiles/moduleMin.dir/main.cpp.o.modmap -MD
-fdeps-format=p1689r5 -x c++ -o CMakeFiles/moduleMin.dir/main.cpp.o -c
/home/nick/src/moduleMin/main.cpp
In module imported at /home/nick/src/moduleMin/main.cpp:3:1:
modA: error: failed to read compiled module cluster 3000: Bad file data
modA: note: compiled module file is ‘CMakeFiles/moduleMin.dir/modA.gcm’
modA: error: failed to read compiled module cluster 3001: Bad file data
In file included from /home/nick/src/moduleMin/main.cpp:1:
/home/nick/inst/gcc-trunk-debug/include/c++/14.0.1/format:1899:35: fatal error:
failed to load pendings for ‘std::__format::__formatter_int’
 1899 |         return _M_f._M_parse<char>(__pc);
      |                ~~~~~~~~~~~~~~~~~~~^~~~~~
compilation terminated.

I'm not sure if this is the same bug, or if I've uncovered a similar but
distinct bug... Various values of --param=ggc-min-expand don't seem to make a
difference.