[Bug 47050] New: typedef'd anonymous structs typedef' d names are not used in interface methods

https://bugs.winehq.org/show_bug.cgi?id=47050

Bug ID: 47050
           Summary: typedef'd anonymous structs typedef'd names are not
                    used in interface methods
           Product: Wine
           Version: 4.5
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: rpc
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

The widl (and midl) tool generate a unique name for anonymous structs, but midl
also includes the typedef'd name and uses it for interface methods. With the
following struct definition:

typedef struct {
    long data;
} Bar;

widl function signatures like this:

void _stdcall doBaz([in] __WIDL_TypedefBug_generated_name_00000000* b);

while midl generates this:

void _stdcall doBaz([in] Bar* b);

min-repro:

https://github.com/pospeselr/mingw-widl-bug/tree/typedef_bug

Includes tlb generated by widl 4.5 and midl 8.01.0622