FileCheck cast.

Author: cjgillot

tests/mir-opt/const_prop/cast.rs

@@ -1,9 +1,12 @@
-// skip-filecheck
 // unit-test: ConstProp
 // EMIT_MIR cast.main.ConstProp.diff
 
 fn main() {
+    // CHECK-LABEL: fn main(
+    // CHECK: debug x => [[x:_.*]];
+    // CHECK: debug y => [[y:_.*]];
+    // CHECK: [[x]] = const 42_u32;
+    // CHECK: [[y]] = const 42_u8;
     let x = 42u8 as u32;
-
     let y = 42u32 as u8;
 }