mapi32/tests: Use win_skip() to skip over unimplemented functionality.

dlls/mapi32/tests/imalloc.c

@@ -93,7 +93,7 @@ START_TEST(imalloc)
     pScInitMapiUtil = (void*)GetProcAddress(hMapi32, "ScInitMapiUtil@4");
     if (!pScInitMapiUtil)
     {
-        skip("ScInitMapiUtil is not available\n");
+        win_skip("ScInitMapiUtil is not available\n");
         FreeLibrary(hMapi32);
         return;
     }
@@ -102,7 +102,7 @@ START_TEST(imalloc)
     ret = pScInitMapiUtil(0);
     if ((ret != S_OK) && (GetLastError() == ERROR_PROC_NOT_FOUND))
     {
-        skip("ScInitMapiUtil is not implemented\n");
+        win_skip("ScInitMapiUtil is not implemented\n");
         FreeLibrary(hMapi32);
         return;
     }

dlls/mapi32/tests/prop.c

@@ -1362,7 +1362,7 @@ START_TEST(prop)
 
     if(!InitFuncPtrs())
     {
-        skip("Needed functions are not available\n");
+        win_skip("Needed functions are not available\n");
         return;
     }
 
@@ -1370,7 +1370,7 @@ START_TEST(prop)
     ret = pScInitMapiUtil(0);
     if ((ret != S_OK) && (GetLastError() == ERROR_PROC_NOT_FOUND))
     {
-        skip("ScInitMapiUtil is not implemented\n");
+        win_skip("ScInitMapiUtil is not implemented\n");
         FreeLibrary(hMapi32);
         return;
     }

dlls/mapi32/tests/util.c

@@ -180,7 +180,7 @@ START_TEST(util)
 
     if (!pScInitMapiUtil)
     {
-        skip("ScInitMapiUtil is not available\n");
+        win_skip("ScInitMapiUtil is not available\n");
         FreeLibrary(hMapi32);
         return;
     }
@@ -189,7 +189,7 @@ START_TEST(util)
     ret = pScInitMapiUtil(0);
     if ((ret != S_OK) && (GetLastError() == ERROR_PROC_NOT_FOUND))
     {
-        skip("ScInitMapiUtil is not implemented\n");
+        win_skip("ScInitMapiUtil is not implemented\n");
         FreeLibrary(hMapi32);
         return;
     }