- Updated all of the tests to use the new ITagHelperDescriptorResolver signature so instead of passing strings they now construct TagHelperDescriptorResolutionContexts.
- Removed several tests from the AddOrRemoveTagHelperSpanVisitorTests. This was due to the change in responsibility of managing the found TagHelperDescriptors; the TagHelperDescriptorResolver now does this.
- Added several new tests to verify the TagHelperDescriptorResolver manages resolved TagHelperDescriptors based on the given TagHelperDirectiveDescriptors.
#214