Comment 20 for bug 1627826

moving to MSVC2015 is waiting Pegasus job to migrate build env.
Before that, we are tied to MSVC2013 and we don't have any other build env with MSVC 2015.
After that, the build env will switch to MSVC2015.

But... MSVC 2015 alone is not sufficient because if i correctly understand QT 4.8 code, Q_COMPILER_INITIALIZER_LISTS is undefined if using MSVC, regardless of MSVC version.

so either we switch to (QT5 + MSVC2015) or we change compiler (other than MSVC)