Add test case for calldata offset and length

tests/ast-parsing/yul-0.7.5.sol

@@ -0,0 +1,9 @@
+contract C {
+    function f(bytes calldata paramA) external returns (uint256 retA) {
+        assembly {
+            retA := paramA.offset
+            retA := add(retA, batchData.length)
+        }
+    }
+
+}