> This seems redundant to me. Either we set the pragma and the compiler
> does not care, or we don't, and rely on the fact that the compiler can
> infer that 'Expression' will never be evaluated at runtime, but won't
> complain about symbols that are only referenced via 'Expression' and
> nowhere else.
I thought so too on initially reading the code, so I tried removing
the pragmas, and in fact the pragma is to tell the compiler not to
warn about the contained `(VOID) Expression`, not to fix the actual
problem warning - which `(VOID) Expression` itself does, once allowed.
So without the pragmas we get instead errors such as:
```
/home/mjsbeaton/OpenSource/edk2/MdeModulePkg/Core/DxeIplPeim/DxeLoad.c:444:86:
error: expression result unused; should this cast be to 'void'?
[-Werror,-Wunused-value]
DEBUG ((DEBUG_INFO | DEBUG_LOAD, "Loading DXE CORE at 0x%11p
EntryPoint=0x%11p\n", (VOID *)(UINTN)DxeCoreAddress,
FUNCTION_ENTRY_POINT (DxeCoreEntryPoint)));
^ ~
/home/mjsbeaton/OpenSource/edk2/MdePkg/Include/Library/DebugLib.h:432:16:
note: expanded from macro 'DEBUG'
(VOID) Expression; \
^
1 error generated.
```
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