stage2: C backend: pointer cast decl refs if necessary
stage2: C backend: pointer cast decl refs if necessary

andrewrk/zig,zig-lang/zig,zig-lang/zig,raulgrell/zig,raulgrell/zig,raulgrell/zig,raulgrell/zig,raulgrell/zig,andrewrk/zig,zig-lang/zig