Move /src/test to /tests

tests/ui/binding/const-param.rs

@@ -0,0 +1,10 @@
+// Identifier pattern referring to a const generic parameter is an error (issue #68853).
+
+fn check<const N: usize>() {
+    match 1 {
+        N => {} //~ ERROR const parameters cannot be referenced in patterns
+        _ => {}
+    }
+}
+
+fn main() {}