- combotst: Fix uninitialized variable usage spotted by MSVC

- tmrqueue: Don't use empty structures, MSVC doe
- w32knapi: Implement IntSyscall in MSVC assembly, be compatible with C89 variable initialization and use '%' instead of '\%' to avoid a msvc warning.

svn path=/trunk/; revision=42845

rostests/tests/tmrqueue/tmrqueue.c

@@ -102,7 +102,7 @@ typedef struct _TESTINFO
   {
     struct
     {
-      /* nothing */
+      HANDLE Dummy;
     } Test1;
     struct
     {