syntax_data: {"ast_node_type":"other","tokens":[{"end":7,"kind":"keyword","start":0,"text":")"}]}
source_snippet:     ) {
context_before:         FxIndexMap<TestBranch<'tcx>, Vec<&'b mut Candidate<'tcx>>>,
context_after:         // For each of the possible outcomes, collect vector of candidates that apply if the test