`$LOAD_PATH.resolve_feature_path` should not raise
When I first tried this method, I was expecting it to return
nil when the given feature is not found. This is because I read in the docs and discussion that this method only searches the feature in the LOAD_PATH, but does not attempt to load it. Raising a load error makes it look that this method tries to load the feature, but I don't think it does that.
nil seems friendlier to me because the "feature not found" case is more like an expected outcome of the method than a real error condition, so in most usages this error will actually be rescued for control flow.
I attach a patch with the change, and link to the GH PR: https://github.com/ruby/ruby/pull/2317.