StaticAnalyzer/Core: fix MSVC build

Fix build breakage from r150378: MSVC only allows taking the
address of a member function using the &ClassName::Function
syntax.# It was giving

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150387 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed