syntax_data: {"ast_node_type":"import","tokens":[{"end":27,"kind":"keyword","start":0,"text":"use"}]}
source_snippet:         use ty::FloatTy::*;
context_before:     pub fn new_float(tcx: TyCtxt<'tcx>, f: ty::FloatTy) -> Ty<'tcx> {
context_after:         match f {