diff --git a/src/test/ui/consts/const-eval/stable-metric/ctfe-fn-call.rs b/tests/ui/consts/const-eval/stable-metric/ctfe-fn-call.rs
similarity index 100%
rename from src/test/ui/consts/const-eval/stable-metric/ctfe-fn-call.rs
rename to tests/ui/consts/const-eval/stable-metric/ctfe-fn-call.rs
diff --git a/src/test/ui/consts/const-eval/stable-metric/ctfe-fn-call.stderr b/tests/ui/consts/const-eval/stable-metric/ctfe-fn-call.stderr
similarity index 100%
rename from src/test/ui/consts/const-eval/stable-metric/ctfe-fn-call.stderr
rename to tests/ui/consts/const-eval/stable-metric/ctfe-fn-call.stderr
diff --git a/src/test/ui/consts/const-eval/stable-metric/ctfe-labelled-loop.rs b/tests/ui/consts/const-eval/stable-metric/ctfe-labelled-loop.rs
similarity index 100%
rename from src/test/ui/consts/const-eval/stable-metric/ctfe-labelled-loop.rs
rename to tests/ui/consts/const-eval/stable-metric/ctfe-labelled-loop.rs
diff --git a/src/test/ui/consts/const-eval/stable-metric/ctfe-labelled-loop.stderr b/tests/ui/consts/const-eval/stable-metric/ctfe-labelled-loop.stderr
similarity index 100%
rename from src/test/ui/consts/const-eval/stable-metric/ctfe-labelled-loop.stderr
rename to tests/ui/consts/const-eval/stable-metric/ctfe-labelled-loop.stderr
diff --git a/src/test/ui/consts/const-eval/stable-metric/ctfe-recursion.rs b/tests/ui/consts/const-eval/stable-metric/ctfe-recursion.rs
similarity index 100%
rename from src/test/ui/consts/const-eval/stable-metric/ctfe-recursion.rs
rename to tests/ui/consts/const-eval/stable-metric/ctfe-recursion.rs
diff --git a/src/test/ui/consts/const-eval/stable-metric/ctfe-recursion.stderr b/tests/ui/consts/const-eval/stable-metric/ctfe-recursion.stderr
similarity index 100%
rename from src/test/ui/consts/const-eval/stable-metric/ctfe-recursion.stderr
rename to tests/ui/consts/const-eval/stable-metric/ctfe-recursion.stderr
diff --git a/src/test/ui/consts/const-eval/stable-metric/ctfe-simple-loop.rs b/tests/ui/consts/const-eval/stable-metric/ctfe-simple-loop.rs
similarity index 100%
rename from src/test/ui/consts/const-eval/stable-metric/ctfe-simple-loop.rs
rename to tests/ui/consts/const-eval/stable-metric/ctfe-simple-loop.rs
diff --git a/src/test/ui/consts/const-eval/stable-metric/ctfe-simple-loop.stderr b/tests/ui/consts/const-eval/stable-metric/ctfe-simple-loop.stderr
similarity index 100%
rename from src/test/ui/consts/const-eval/stable-metric/ctfe-simple-loop.stderr
rename to tests/ui/consts/const-eval/stable-metric/ctfe-simple-loop.stderr
diff --git a/tests/ui/consts/const-eval/stable-metric/dominators-edge-case.rs b/tests/ui/consts/const-eval/stable-metric/dominators-edge-case.rs
new file mode 100644
index 00000000000..0b0f361809f
--- /dev/null
+++ b/tests/ui/consts/const-eval/stable-metric/dominators-edge-case.rs
@@ -0,0 +1,19 @@
+// check-pass
+//
+// Exercising an edge case which was found during Stage 2 compilation.
+// Compilation would fail for this code when running the `CtfeLimit`
+// MirPass (specifically when looking up the dominators).
+#![crate_type="lib"]
+
+const DUMMY: Expr = Expr::Path(ExprPath {
+    attrs: Vec::new(),
+    path: Vec::new(),
+});
+
+pub enum Expr {
+    Path(ExprPath),
+}
+pub struct ExprPath {
+    pub attrs: Vec<()>,
+    pub path: Vec<()>,
+}