syntax_data: {"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // This is currently used to allow us to walk a ValTree
context_before:         mut normalize: impl FnMut(Ty<'tcx>) -> Ty<'tcx>,
context_after:         // in lockstep with the type in order to get the ValTree branch that