syntax_data: {"ast_node_type":"other","tokens":[{"end":18,"kind":"keyword","start":0,"text":"self.infcx"}]}
source_snippet:         self.infcx
context_before:         // needed to define opaque types for tests/ui/type-alias-impl-trait/assoc-projection-ice.rs
context_after:             .at(&obligation.cause, obligation.param_env)