bump llvm version of failing codegen test

gnzlbg · gnzlbg · commit 52d774027793 · 2018-07-09T11:35:53.000+02:00
diff --git a/src/test/codegen/issue-45466.rs b/src/test/codegen/issue-45466.rs
@@ -9,6 +9,7 @@
 // except according to those terms.
 
 // compile-flags: -O
+// min-llvm-version 6.0
 
 #![crate_type="rlib"]
 
