[Sol->Yul] Adding new and activating old tests for copying of arrays to storage.

test/libsolidity/semanticTests/array/copying/array_copy_target_leftover2.sol

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+// since the copy always copies whole slots, we have to make sure that the source size maxes
+// out a whole slot and at the same time there are still elements left in the target at that point
+contract c {
+    bytes8[4] data1; // fits into one slot
+    bytes10[6] data2; // 4 elements need two slots
+
+    function test() public returns (bytes10 r1, bytes10 r2, bytes10 r3) {
+        data1[0] = bytes8(uint64(1));
+        data1[1] = bytes8(uint64(2));
+        data1[2] = bytes8(uint64(3));
+        data1[3] = bytes8(uint64(4));
+        for (uint256 i = 0; i < data2.length; ++i)
+            data2[i] = bytes10(uint80(0xffff00 | (1 + i)));
+        data2 = data1;
+        r1 = data2[3];
+        r2 = data2[4];
+        r3 = data2[5];
+    }
+}
+
+// ----
+// test() -> 0x04000000000000000000000000000000000000000000000000, 0x0, 0x0