syntax_data: {"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// If evaluating `T: Foo` results in ambiguity and `T: Bar` results in
context_before:     /// subgoals whenever we use the impl as a candidate: `T: Foo` and `T: Bar`.
context_after:     /// success, we merge these two responses. This results in ambiguity.