Mono: Bindings no longer relie on DocData for accessors

[neikeq]

Fixes #15128

[neikeq]

That typo :(

[NathanWarden]

Thanks, I can confirm that this fixes it :)

[EugenEistrachOld]

@neikeq
Compiled latest master branch with manually edited file with the changes from this pull request

It fixed #15128 but I got a new issue. I created a new project with one node and a script attached to the node. The script has this two lines in the _Ready Method:

var dir = new Directory();
dir.Open("res://");

The second line crashes the game with following console output:

CrashHandlerException: Program crashed
Dumping the backtrace. Please include this when reporting the bug on https://github.com/godotengine/godot/issues
[0] <couldn't map PC to fn name>
[1] <couldn't map PC to fn name>
[2] <couldn't map PC to fn name>
[3] <couldn't map PC to fn name>
-- END OF BACKTRACE --

Before I compiled the engine (64bit) I cleaned the scons cache and followed the steps here and here (for mono)

Did I do something wrong or is this crash reproducable?

[AllanDaemon]

This works for me too.