Parameter names should not be mangled, as this causes mismatches between
extractor and xml data:
```
SEVERE: Incompatibility between function/method signature and list of parameters in `wx.html.HtmlHelpWindow.__init__`:
The parameter `WindowID` appears in the method signature but could not be found in the parameter list.
==> Function/Method signature from `extractors`: __init__(parent, WindowID, pos=wx.DefaultPosition, size=wx.DefaultSize, style=wx.TAB_TRAVERSAL|wx.BORDER_NONE, helpStyle=HF_DEFAULT_STYLE, data=None)
==> Parameter list from wxWidgets XML items: ['parent', 'wxWindowID', 'pos', 'size', 'style', 'helpStyle', 'data']
```
```
==> Function/Method signature from `extractors`: SetAssertMode(AppAssertMode)
==> Parameter list from wxWidgets XML items: ['wxAppAssertMode']
```
This solves problems where an array that is the return value of some method call is indexed immediately and a reference to the array is not held, which could result in garbage values for the indexed item. Currently this is turned on for just GridCellCoordsArray, but others can be switched in the future if needed.
Many do not actually have it, but the docs only declare it in wx.Window so we will miss the ones that really do have one unless we let sip know about them.
Set the /Transfer/ annotation on the ctors, because the C++ objects will always own themselves and will delete themselves when their C++ refcount drops to zero.
GetIM() returns a replicant of the original object that is immutable, so it can be used as a dictionary key, or etc., but still gives access to the properties by name, which using the Get() method to get a tuple of the values does not do.
Instead of allowing generic sequences to be convertible to wxPoint, wxSize, and others, explicitly allow only tuples and lists. This is needed because these types also have methods that make them look like sequences, which meant that you could pass a wxSize where a wxPoint is expected, and so on.
Even worse is nonsense stuff like:
wx.Point(10,20) == wx.Size(10,20)
evaluating to True.
