…on query. Instead of using the requested context version. This fixes occlusion query detection with all traces recorded on Windows, as wglCreateContext doesn't provide way to specify context version and can't be avoided. Fixes #358 (comment)
Noticed while investigating #378
Direct2D relies on it a lot on newer Windows. Data passed in WarpEscape is opaque, but knowing that the application is relying on it is useful, since otherwise the traces will be incomplete with no warning whatsoever.
To avoid GCC 4.9 dependency. Fixes #370.