syntax_data: {"ast_node_type":"other","tokens":[{"end":14,"kind":"keyword","start":0,"text":"else"}]}
source_snippet:         else {
context_before:             self.static_pattern_match(&cx, valtree, &*scope.arms, &scope.built_match_tree)
context_after:             self.tcx.dcx().emit_fatal(ConstContinueUnknownJumpTarget { span })