FileCheck inherit_overflow.

Author: cjgillot

tests/mir-opt/const_prop/inherit_overflow.rs

@@ -1,11 +1,14 @@
-// skip-filecheck
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 // unit-test: ConstProp
 // compile-flags: -Zmir-enable-passes=+Inline
 
+// After inlining, this will contain a `CheckedBinaryOp`.
+// Propagating the overflow is ok as codegen will just skip emitting the panic.
 // EMIT_MIR inherit_overflow.main.ConstProp.diff
 fn main() {
-    // After inlining, this will contain a `CheckedBinaryOp`.
-    // Propagating the overflow is ok as codegen will just skip emitting the panic.
+    // CHECK-LABEL: fn main(
+    // CHECK: {{_.*}} = const (0_u8, true);
+    // CHECK: assert(!const true,
+    // CHECK: {{_.*}} = const 0_u8;
     let _ = <u8 as std::ops::Add>::add(255, 1);
 }