ComInterfaceGenerator has guaranteed unmarshal after the managed call in unmanaged to managed stubs

[jtschuster]

Parameters with guaranteed unmarshalling don't get unmarshalled before the call to the managed interface method.

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Issue Details

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Parameters with guaranteed unmarshalling don't get unmarshalled before the call to the managed interface method.

Author:	jtschuster
Assignees:	-
Labels:	area-System.Runtime.InteropServices
Milestone:	-