Move files.

test/libsolidity/semanticTests/array/reusing_memory.sol

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+// Invoke some features that use memory and test that they do not interfere with each other.
+contract Helper {
+    uint256 public flag;
+
+    constructor(uint256 x) public {
+        flag = x;
+    }
+}
+
+
+contract Main {
+    mapping(uint256 => uint256) map;
+
+    function f(uint256 x) public returns (uint256) {
+        map[x] = x;
+        return
+            (new Helper(uint256(keccak256(abi.encodePacked(this.g(map[x]))))))
+                .flag();
+    }
+
+    function g(uint256 a) public returns (uint256) {
+        return map[a];
+    }
+}
+// ----
+// f(uint256): 0x34 -> 0x46bddb1178e94d7f2892ff5f366840eb658911794f2c3a44c450aa2c505186c1