Index modules and classes starting with unicode characters #973
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Motivation
Ruby allows using unicode characters in constant names, so we have to account for that when indexing.
Uncovered while addressing #957 (comment).
NOTE: this PR identified a bug in YARP. It's currently ignoring the original string's encoding when doing
node.slice
.Implementation
Switched the regex to allow for any uppercase character, which will include unicode ones.
Automated Tests
Added a test demonstrating some unicode character classes.