[chapel-lang/chapel] Some testing clean ups

Branch: refs/heads/master
Revision: 4b34591
Author: lydia-duncan
Log Message:

Merge pull request #16213 from lydia-duncan/trackResolvedFailure

Some testing clean ups
[not reviewed, but ran the nested-class test change past @vasslitvinov]

Add a test to track that #14824 stays resolved, and resolve the future
test/classes/vass/nested-class-with-external-access-1.chpl, which
started passing as a result of #16208 (plus add a comment at Vass’s
request).

Tested a fresh checkout of both

Modified Files:
A test/classes/initializers/initequals/useOnly.chpl
A test/classes/initializers/initequals/useOnly.good
R test/classes/vass/nested-class-with-external-access-1.future
M test/classes/vass/nested-class-with-external-access-1.chpl

Compare: https://github.com/chapel-lang/chapel/compare/861c8044e995...4b34591f1d79