syntax_data: {"ast_node_type":"other","tokens":[{"end":44,"kind":"keyword","start":0,"text":"ty::Float(ty::FloatTy::F64)"}]}
source_snippet:             ty::Float(ty::FloatTy::F64) => {
context_before:             }
context_after:                 ((-Double::INFINITY).to_bits(), Double::INFINITY.to_bits())