[Issue 16007] New: Some Win32 API structs has wrong definitions

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16007

          Issue ID: 16007
           Summary: Some Win32 API structs has wrong definitions
           Product: D
           Version: D2
          Hardware: All
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P1
         Component: druntime
          Assignee: nobody at puremagic.com
          Reporter: jiki at red.email.ne.jp

I'm verifying the sizes of the structs in Win32 headers.
This is the first PR of problems I found.

For instance:
- Simply missing fileds or structs
- Unions has orphan structs which do not get instances
- Asymmetric pairs for x86/x64
- Asymmetric pair for ANSI/Unicode

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