[Bug 49345] New: widl generates incorrect correlation descriptor for an embedded conformant array

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=49345

            Bug ID: 49345
           Summary: widl generates incorrect correlation descriptor for an
                    embedded conformant array
           Product: Wine
           Version: 5.10
          Hardware: x86
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: rpc
          Assignee: wine-bugs(a)winehq.org
          Reporter: dmitry(a)baikal.ru
      Distribution: ---

I've submitted a test case for this widl bug:
https://source.winehq.org/patches/data/186613

In order to see the bug one needs to remove #ifdef'ed code in server.idl.
Without '#if 0' widl generates broken format strings and the tests crash
under Windows and Wine.

As far as I can see widl generates incorrect memory offsets for embedded
structure fields with size_is() attribute, NdrSimpleStructBufferSize()
calculates wrong size, and later calls in the client/server stubs lead to
memory corruption.

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