This code predates the public history. I don't know exactly how this
worked before, but I guess it's because the QT_USE_NAMESPACE in our
headers.
If there's _any_ get() function at the global scope, then name lookup
stops there and considers _only_ that function. And if that happens to
have a compatible signature, good night.
Use unqualified lookup instead. That will find the QT_NAMESPACE one,
ignoring other overloads at global scope. And when non-namespaced,
will emit an ambiguity error in the presence of another matching get()
function at global scope.
Task-number: QTBUG-111598
Pick-to: 6.5 6.4 6.2 5.15
Change-Id: Iea141ea543193394ba527b414caf31c1f3a2355b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
b955648224