Fix compile-flags directive

ecstatic-morse · RalfJung · web-flow · commit 130766c466de · 2020-08-23T10:45:26.000-07:00
Co-authored-by: Ralf Jung &lt;post@ralfj.de&gt;
diff --git a/src/test/ui/consts/const-float-bits-conv.rs b/src/test/ui/consts/const-float-bits-conv.rs
@@ -1,4 +1,4 @@
-// -Zmir-opt-level=0
+// compile-flags: -Zmir-opt-level=0
 // run-pass
 
 #![feature(const_panic)]
diff --git a/src/test/ui/consts/const-float-classify.rs b/src/test/ui/consts/const-float-classify.rs
@@ -1,4 +1,4 @@
-// -Zmir-opt-level=0
+// compile-flags: -Zmir-opt-level=0
 // run-pass
 
 #![feature(const_panic)]
