ole32/ole2: Don't call IDropTarget::QueryInterface() in RegisterDragDrop(). (try 4 resend)

[Adam Martinson]

This is to work around apps which break COM rules by not implementing
IDropTarget::QueryInterface().  Windows doesn't expose this because it
doesn't call CoMarshallInterface() in RegisterDragDrop().

Fixes bug 23861.
---
  dlls/ole32/ole2.c           |  122 
+++++++++++++++++++++++++++++++++++++++---
  dlls/ole32/tests/dragdrop.c |    2 +-
  2 files changed, 114 insertions(+), 10 deletions(-)


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