AllowUncPaths (and the whole enum) is private API that is always enabled
only on Windows (build-time decision). So, remove it and change the
unittests to match reality. Now DefaultNormalization on Windows implies
handling UNC paths.
This was suggested in code review by Thiago; since this is a hot code
path, the goal is letting the compiler keep the flags parameter to
qt_normalizePathSegments() in a register, by keeping the
PathNormalization enum as small as possible.
Drive-by change: since those lines in the unittest are changed anyway,
take the chance and use u""_s syntax.
Change-Id: I3dcf30d888a0ea9f8898e260e65c5f85655296d5
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 4f47ee4de46f1fa2df9fef163590807e2fae28d1)
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
ba33345d71