Skip typedef'd function signature (FunctionProto)
Skip typedef'd function signature (FunctionProto)

zhmz90/Clang.jl,ihnorton/Clang.jl,zhmz90/Clang.jl,JuliaPackageMirrors/Clang.jl,mdcfrancis/Clang.jl,JuliaPackageMirrors/Clang.jl,ihnorton/Clang.jl,mdcfrancis/Clang.jl