syntax_data: {"ast_node_type":"other","tokens":[{"end":37,"kind":"keyword","start":0,"text":"crate::ty::instance::ReifyReason,"}]}
source_snippet:     crate::ty::instance::ReifyReason,
context_before:     crate::ty::PlaceholderType,
context_after:     rustc_hir::def_id::DefId,