[Chapel Merge] Close a leak in a new test

Branch: refs/heads/master
Revision: 3746163
Author: e-kayrakli
Log Message:

Merge pull request #16456 from e-kayrakli/close-leak-in-test

Close a leak in a new test

Test was added in https://github.com/chapel-lang/chapel/pull/16380

start_test -memleaks passed locally

[Reviewed by @mppf]

Modified Files:
M test/classes/delete-free/issue-15586.chpl

Compare: https://github.com/chapel-lang/chapel/compare/790551a5dfc4...37461635736a