syntax_data: {"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"ty::Free"}]}
source_snippet:                     ty::Free => TypeFlags::HAS_TY_FREE_ALIAS,
context_before:                     ty::Projection => TypeFlags::HAS_TY_PROJECTION,
context_after:                     ty::Opaque => TypeFlags::HAS_TY_OPAQUE,