Move files.

test/libsolidity/semanticTests/abiencodedecode/abi_decode_calldata.sol

@@ -0,0 +1,11 @@
+contract C {
+    function f(bytes calldata data)
+        external
+        pure
+        returns (uint256, bytes memory r)
+    {
+        return abi.decode(data, (uint256, bytes));
+    }
+}
+// ----
+// f(bytes): 0x20, 0x80, 0x21, 0x40, 0x7, "abcdefg" -> 0x21, 0x40, 0x7, "abcdefg"

test/libsolidity/semanticTests/abiencodedecode/abi_decode_simple.sol

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+contract C {
+    function f(bytes memory data) public pure returns (uint256, bytes memory) {
+        return abi.decode(data, (uint256, bytes));
+    }
+}
+// ----
+// f(bytes): 0x20, 0x80, 0x21, 0x40, 0x7, "abcdefg" -> 0x21, 0x40, 0x7, "abcdefg"

test/libsolidity/semanticTests/abiencodedecode/abi_decode_simple_storage.sol

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+contract C {
+    bytes data;
+
+    function f(bytes memory _data) public returns (uint256, bytes memory) {
+        data = _data;
+        return abi.decode(data, (uint256, bytes));
+    }
+}
+// ----
+// f(bytes): 0x20, 0x80, 0x21, 0x40, 0x7, "abcdefg" -> 0x21, 0x40, 0x7, "abcdefg"

test/libsolidity/semanticTests/abiencodedecode/abi_encode_empty_string.sol

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+// Tests that this will not end up using a "bytes0" type
+// (which would assert)
+contract C {
+    function f() public pure returns (bytes memory, bytes memory) {
+        return (abi.encode(""), abi.encodePacked(""));
+    }
+}
+// ====
+// ABIEncoderV1Only: true
+// ----
+// f() -> 0x40, 0xc0, 0x60, 0x20, 0x0, 0x0, 0x0