I missed an unnecessary ustringhash to ustring conversion back in #1792. Looking up the interp value directly from the ustringhash fixes a performance regression caused by the conversion.
[x] I have updated the documentation, if applicable.
[ ] I have ensured that the change is tested somewhere in the testsuite (adding new test cases if necessary).
[x] My code follows the prevailing code style of this project. If I haven't
already run clang-format v17 before submitting, I definitely will look at
the CI test that runs clang-format and fix anything that it highlights as
being nonconforming.
Description
I missed an unnecessary ustringhash to ustring conversion back in #1792. Looking up the interp value directly from the ustringhash fixes a performance regression caused by the conversion.
Tests
Checklist: