VC6 compilation fixes (#10059)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@56161 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

tests/textfile/textfiletest.cpp

@@ -64,7 +64,7 @@ private:
     // create the test file with the given contents
     static void CreateTestFile(const char *contents)
     {
-        return CreateTestFile(strlen(contents), contents);
+        CreateTestFile(strlen(contents), contents);
     }
 
     // create the test file with the given contents (version must be used if