Fix build: revert r229148 "Fix argdumper build in cmake (OS X) after r228636"...

Fix build: revert r229148 "Fix argdumper build in cmake (OS X) after r228636" and r229159 "Fix build: make_symlink_darwin_debug passes 2 arguments into make_symlink, but it requires 4 arguments"

llvm-svn: 229166