Autocompletion should respect 'Pointers and References' code style

When Qt Creator autocompletes the parameters for a function the user is defining (as inferred from the associated header file), the 'Pointer and References' code style rules are not respected – it seems that the autocompletion engine always right-binds the pointers.

As an enhancement, the autocompletion system could:

1. Check the active style rules for how pointers and references should be aligned;
2. Attempt to infer the user-desired alignment based on the text in the associated header declaration.