syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // a really long time. See issue #83150 for why this is necessary.
context_before:             // We collect types in order to prevent really large types from compiling for
context_after:             fn visit_ty(&mut self, ty: Ty<'tcx>) {