Merge upstream llvm.org r211728 into dev-tfiala-native-protocol-linux-x86_64

Conflicts:
	source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServer.cpp
Merge remote-tracking branch 'origin/dev-tfiala-native-protocol-linux-x86_64' into dev-tfiala-native-protocol-linux-x86_64