[SourceKit] Allow references to non-editable base names to be returned by the related identifiers request

While we don't want to return non-editable base names for Edit-All-In-Scope, we do want to return them if the related identifiers response is used as the input for find-syntactic-rename-ranges.

utils/gyb_sourcekit_support/UIDs.py

@@ -146,6 +146,7 @@ UID_KEYS = [
     KEY('Simplified', 'key.simplified'),
     KEY('RangeContent', 'key.rangecontent'),
     KEY('CancelOnSubsequentRequest', 'key.cancel_on_subsequent_request'),
+    KEY('IncludeNonEditableBaseNames', 'key.include_non_editable_base_names'),
     KEY('RenameLocations', 'key.renamelocations'),
     KEY('Locations', 'key.locations'),
     KEY('NameType', 'key.nametype'),