Fix MSVC-warning about inconsistent DLL-linkage.
Fix MSVC-warning about inconsistent DLL-linkage.

Introduced by 9b5a55101d7c519446c1cf3706a235dea81ad4de .

Task-Number: QTBUG-28572
Change-Id: I5e7d012d22c701b2b15ab288d2c72f177caf904e
Reviewed-by: Christopher Adams <c70a9ce81e2a2845c7de39e473936954532fd1e5@jollamobile.com>

matthewvogt/qtdeclarative,corngood/qtdeclarative,qmlc/qtdeclarative,mgrunditz/qtdeclarative-2d,mgrunditz/qtdeclarative-2d,corngood/qtdeclarative,qmlc/qtdeclarative,qmlc/qtdeclarative,mgrunditz/qtdeclarative-2d,qmlc/qtdeclarative,qmlc/qtdeclarative,qmlc/qtdeclarative,matthewvogt/qtdeclarative,matthewvogt/qtdeclarative,corngood/qtdeclarative,corngood/qtdeclarative,matthewvogt/qtdeclarative,corngood/qtdeclarative,corngood/qtdeclarative,corngood/qtdeclarative,matthewvogt/qtdeclarative,matthewvogt/qtdeclarative,mgrunditz/qtdeclarative-2d,mgrunditz/qtdeclarative-2d,mgrunditz/qtdeclarative-2d,qmlc/qtdeclarative,matthewvogt/qtdeclarative,mgrunditz/qtdeclarative-2d,qmlc/qtdeclarative,matthewvogt/qtdeclarative