Internal test -test-abi-dumper failing for C++

[robokoi]

Issue:
Using -test-abi-dumper results in C++ failure with 51 issues found instead of the 217 found using -test and -test-dump. C tests pass. ABI dumper is version 1.1.
test-abi-dumper.log

Expectation:
-test-abi-dumper results in same findings as -test or -test-dump, OR that information is provided as to what can't be tested using program chaining vs internal generation via ABIDump.pm.

System: RHEL 7, GCC 4.8.5

[Nihlus]

This remains an issue on Ubuntu 22.04 using GCC 11.