In a subsequent comment we will set the qmake variable MSVC_VER to 16.8
to check for the availability of certain compiler flags that were
introduced in that compiler version.
The old code compared exact version strings. With this patch we're
checking version ranges instead and handle MSVC_VER 16.x as VS 2019.
Pick-to: 6.2 5.15
Task-number: QTBUG-89296
Change-Id: I9ea24a66f68a342a72f5c2a285bafacb8786661b
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
b073de274d