Create samefile_union

Author: VolodymyrBg

testdata/default/linking/samefile_union

@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.18;
+
+library LInit {
+    function f() internal pure returns (uint) { return 1; }
+}
+library LRun {
+    function g() internal pure returns (uint) { return 2; }
+}