Moving some bytes and array tests to semanticTests

test/libsolidity/semanticTests/array/copying/copy_removes_bytes_data.sol

@@ -0,0 +1,12 @@
+
+contract c {
+    function set() public returns (bool) { data1 = msg.data; return true; }
+    function reset() public returns (bool) { data1 = data2; return true; }
+    bytes data1;
+    bytes data2;
+}
+// ----
+// set(): 1, 2, 3, 4, 5 -> true
+// storage: nonempty
+// reset() -> true
+// storage: empty