syntax_data: {"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":".uses_unique_generic_params(&alias_ty.args[..parent_count],"}]}
source_snippet:             .uses_unique_generic_params(&alias_ty.args[..parent_count], CheckRegions::FromFunction)
context_before:             .tcx
context_after:         {