Re-enable debuginfo tests on Android

[yichoi]

Some debuginfo tests were disabled when running on Android when we added support for running tests on the Android bot (#9120). We should try to enable all debuginfo on Android. (See the results of https://cs.github.com/rust-lang/rust?q=ignore-android%20path%3A%2F%5Esrc%5C%2Ftest%5C%2Fdebuginfo%5C%2F%2F for which tests are disabled)

Debugging with gdb on android target works differently from debugging with gdb on linux.

There are two options however it is not high priority

• we can modify android gdb to work like linux gdb
• we can modify debug-info to work with android gdb

[jdm]

What are the differences between android and linux gdb?

[yichoi]

some gdb command works on linux gdb properly but exits without error message on android gdb.

[flaper87]

Triage: I believe this is still an issue since the debug-info tests are still being ignored for android

[sanxiyn]

Fixed in #21774.