<rdar://problem/12717717>

Modifying our data formatters matching algorithm to ensure that "const X*" is treated as equivalent to "X*"
Also, a couple improvements to the "lldb types" logging



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@184215 91177308-0d34-0410-b5e6-96231b3b80d8