with 15.0.3 and GCC 4.9.3 (did not have 4.9.2 at hand) I'm not able to reproduce this.
Could you please provide me a preprocessed output of the failing compilation? The smaller the file, the better. Please also enclose the compiler options. If you don't want to disclose the file you can send me a direct message.
The fail is a bug in the C/C++ compiler front-end.
Thank you very much,