[Bug c++/84281] Heap grows indefinitely

[fiesh at zefix dot tv]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84281

--- Comment #5 from fiesh at zefix dot tv ---
The test case was reduced from an actual translation unit that stalled our
build server.  Since the translation unit itself was invalid C++, the test case
is too. I think it shouldn't be part of the contract that only valid code may
be passed to the compiler.  Therefore to me this is not invalid.