syntax_data: {"ast_node_type":"other","tokens":[{"end":100,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // The subpairs of a deref pattern are all places relative to the deref temporary, so we
context_before:         } else if matches!(match_pair.test_case, TestCase::Deref { .. }) {
context_after:             // don't fake borrow them. Problem is, if we only shallowly fake-borrowed