Currently a function parameter with no arguments is not parsed correctly. Given `$.objects.keys().size()`, after encountering keys (a function with no arguments) the position should move from $.objects.keys`(`).size() to $.objects.keys()`.`size(). But in current implementation read position moves from $.objects.keys`(`).size() to $.objects.keys(`)`.size()

This pull request will fix this issue.

Add test case for fixing parsing logic for function with no arguments