swift234

Add an option to the Demangler to not show the type of ivars when displaying their "field offset" symbols
iVars of a given type should be unique by name and so in certain cases, their types will not actually add information to a consumer of the demangled string
This mode is mostly useful for LLDB. When searching for a field offset by name in a generic scenario, the search can succeed or fail depending on whether archetypes are
obtained through the Demangler ("A","B","C") or through the module (which will vend proper archetype names when poked the right way)
This mode removes that ambiguity



Swift SVN r10761