gdbstub and testing fixes for 8.2 This is the current state for my maintainer queue for when the tree re-opens. It includes the previous testing/next fixes as well as some more cleanups to modernise the gdbstub tests and code. It also includes Matheus' fixes for SIGINT. The following patches need review: gdbstub: replace global gdb_has_xml with a function gdbstub: refactor get_feature_xml gdbstub: remove unused user_ctx field tests/tcg: clean-up gdb confirm/pagination settings tests: remove test-gdbstub.py tests/tcg: remove quoting for info output