[Bug c++/105512] compilation with -fmodules-ts and std=c++20 leads to segfault

["gnu.w2nnu at simplelogin dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105512

David Truby <gnu.w2nnu at simplelogin dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |gnu.w2nnu at simplelogin dot com

--- Comment #1 from David Truby <gnu.w2nnu at simplelogin dot com> ---
I also see this issue and have a reproducer here:
---- main.cpp
#include <iostream>
#include <string>
import test;

int main() {
        std::cout << tester();
}

---- test.cpp
module; 
#include <string>
export module test;

export std::string tester() {
        return "hello world\n";
}

----

Interestingly the issue also goes away if -D_GLIBCXX_USE_CXX11_ABI=0 is passed
to both TUs so I suspect there's an issue with the module file not exporting
the correct ABI for `std::string`