test: Swap the order of two imports in import7 to eliminate another cycle

Author: pcwalton

src/test/run-pass/import7.rs

@@ -1,5 +1,5 @@
-import bar::baz;
 import foo::zed;
+import bar::baz;
 mod foo {
     mod zed {
         fn baz() { #debug("baz"); }