Added 46186 stderr

Author: colinmarsh19

src/test/ui/issue-46186.stderr

@@ -0,0 +1,8 @@
+error: expected item, found `;`
+  --> $DIR/issue-46186.rs:13:2
+   |
+13 | }; //~ ERROR expected item, found `;`
+   |  ^ help: consider removing this semicolon
+
+error: aborting due to previous error
+