Syntax hilighting greys out code that it should not

Open from Qt:
src/network/access/qnetworkaccesshttpbackend.cpp
src/network/access/qhttpnetworkconnectionchannel.cpp
and some other files in that directory.

You will see that the file is greyed out and the navigator on top of the editor says "No symbols".

This happens already since quite some creator versions but I was too lazy to report it ;o)