CParser doesn't recognize Microsoft-specific pointer modifier __uptr

[xiaoyinl]

Describe the bug
The Ghidra's CParser can't parse the following C source code:

void MyFunction(char * __uptr __ptr32 myValue);

__uptr and __sptr are Visual Studio specific. They are documented here: https://learn.microsoft.com/en-us/cpp/cpp/sptr-uptr.

Error Message

C Parser:  Encountered errors during parse.
         in C:\...\uptr.h near line 2
Error: Encountered " "__ptr32" "__ptr32 "" at line 3, column 31.
Was expecting one of:
    [... omitted ...]
    
         near token: __uptr
Possibly Undefined : (
         Last Valid Datatype: char *
         Check around uptr2 around line: 3

Environment (please complete the following information):

• OS: Windows 11
• Java Version: 17.0.7
• Ghidra Version: 11.1 DEV 59972bb
• Ghidra Origin: locally built

Additional context
This error appears when parsing GET_CONFIGURATION_IOCTL_INPUT32 struct in ntddmmc.h in Windows WDK, using x86-64 profile. After macro expansion, its definition is:

typedef struct _GET_CONFIGURATION_IOCTL_INPUT32 {
    FEATURE_NUMBER   Feature;
    ULONG            RequestType; 
    void* __uptr __ptr32 Reserved[2];
} GET_CONFIGURATION_IOCTL_INPUT32, *PGET_CONFIGURATION_IOCTL_INPUT32;