Fix changed error message

Munksgaard · Munksgaard · commit 7e943d8cf17a · 2020-08-13T17:42:07.000+02:00
diff --git a/test-project/tests/compile-fail/asm-gated.rs b/test-project/tests/compile-fail/asm-gated.rs
@@ -10,6 +10,6 @@
 
 fn main() {
     unsafe {
-        llvm_asm!(""); //~ ERROR inline assembly is not stable enough
+        llvm_asm!(""); //~ ERROR use of unstable library feature
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -10,6 +10,6 @@`
`10`	`10`
`11`	`11`	`fn main() {`
`12`	`12`	`unsafe {`
`13`		`- llvm_asm!(""); //~ ERROR inline assembly is not stable enough`
	`13`	`+ llvm_asm!(""); //~ ERROR use of unstable library feature`
`14`	`14`	`}`
`15`	`15`	`}`