Cannot Show variables of a Thread with tid > 2

[mco-ericsson]

When debugging multiple threads, if you try to display the variables of a thread with a TID > 2, you will see:

Unknown value for PRINT_VALUES: must be: 0 or \"--no-values\", 1 or \"--all-values\", 2 or \"--simple-values\"

This is caused by a misuse of the -var-update MI command.

[jonahgraham]

I cannot reproduce this. It may have been fixed in the meantime when I added better multi-thread support in #194 - there is now a multithread test that verifies it can read variables from all frames - see https://github.com/eclipse-cdt-cloud/cdt-gdb-adapter/blob/main/src/integration-tests/multithread.spec.ts

I did find a bug while investigating this one, see #235 and its associated PR.