fix: keep native VM helper header lightweight

Co-authored-by: Tim Fox <timfox@outlook.com>

Author: cursoragent

src/qcommon/vm.c

@@ -2033,6 +2033,8 @@ intptr_t QDECL VM_Call( vm_t *vm, int nargs, int callnum, ... )
 	if ( vm->entryPoint )
 	{
 		va_list ap;
+		_Static_assert( VM_NATIVE_MODULE_ARG_COUNT == MAX_VMMAIN_CALL_ARGS - 1,
+			"native vmMain helper must pass every native arg slot" );
 		va_start( ap, callnum );
 		r = VM_CallNativeModuleEntryPoint( vm->entryPoint, nargs, callnum, ap );
 		va_end( ap );

src/qcommon/vm_native_module.c

@@ -76,7 +76,7 @@ int VM_BuildNativeModuleLoadOrder( const char *moduleName, char out[][MAX_QPATH]
 }
 
 intptr_t VM_CallNativeModuleEntryPoint( vmNativeModuleEntryPoint_t entryPoint, int nargs, int callnum, va_list ap ) {
-	int32_t args[MAX_VMMAIN_CALL_ARGS - 1];
+	int32_t args[VM_NATIVE_MODULE_ARG_COUNT];
 	int i;
 
 	Com_Memset( args, 0, sizeof( args ) );

src/qcommon/vm_native_module.h

@@ -1,7 +1,9 @@
 #ifndef VM_NATIVE_MODULE_H
 #define VM_NATIVE_MODULE_H
 
-#include "qcommon.h"
+#include "q_shared.h"
+
+#define VM_NATIVE_MODULE_ARG_COUNT 3
 
 typedef intptr_t (QDECL *vmNativeModuleEntryPoint_t)( int command, int arg0, int arg1, int arg2 );