Move /src/test to /tests

tests/ui/const-generics/different_generic_args_array.rs

@@ -0,0 +1,11 @@
+// Check that different const types are different.
+#![feature(adt_const_params)]
+#![allow(incomplete_features)]
+
+struct Const<const V: [usize; 1]> {}
+
+fn main() {
+    let mut x = Const::<{ [3] }> {};
+    x = Const::<{ [4] }> {};
+    //~^ ERROR mismatched types
+}