Fix doxygen warnings
It seems that doxygen fails to find overloaded methods when the parameters are
not in sync with the method declaration.
Added the fully-qualifed type to the parameters method definition although it's
not necessary since the using directive is in effect.


git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@186948 91177308-0d34-0410-b5e6-96231b3b80d8