oleaut32/tests: Use boolean return values in boolean functions.

dlls/oleaut32/tests/tmarshal.c

@@ -721,9 +721,8 @@ static BOOL mystruct_uint_ordered(MYSTRUCT *mystruct)
     int i;
     for (i = 0; i < sizeof(mystruct->uarr)/sizeof(mystruct->uarr[0]); i++)
         if (mystruct->uarr[i] != i)
-            return 0;
-
-    return 1;
+            return FALSE;
+    return TRUE;
 }
 
 static HRESULT WINAPI Widget_StructArgs(

dlls/oleaut32/tests/vartest.c

@@ -290,7 +290,7 @@ static BOOL is_expected_variant( const VARIANT *result, const VARIANT *expected
         return !memcmp( &V_DECIMAL(result), &V_DECIMAL(expected), sizeof(DECIMAL) );
     default:
         ok(0, "unhandled variant type %s\n",vtstr(V_VT(expected)));
-        return 0;
+        return FALSE;
     }
 }