Sort tests.

test/libsolidity/semanticTests/structs/recursive_structs.sol

@@ -0,0 +1,19 @@
+contract C {
+    struct S {
+        S[] x;
+    }
+    S sstorage;
+
+    function f() public returns (uint256) {
+        S memory s;
+        s.x = new S[](10);
+        delete s;
+        // TODO Uncomment after implemented.
+        // sstorage.x.push();
+        delete sstorage;
+        return 1;
+    }
+}
+
+// ----
+// f() -> 1