Simplify implementation of Rust intrinsics by using type parameters in the cache

src/builder.rs

@@ -897,7 +897,7 @@ impl<'a, 'gcc, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'gcc, 'tcx> {
     fn checked_binop(
         &mut self,
         oop: OverflowOp,
-        typ: Ty<'_>,
+        typ: Ty<'tcx>,
         lhs: Self::Value,
         rhs: Self::Value,
     ) -> (Self::Value, Self::Value) {