Now that ValueObjects permit writing, made the
Materializer use that API when dematerializing
variables.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@179443 91177308-0d34-0410-b5e6-96231b3b80d8
Added symbol materialization support to the new
Materializer.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@179445 91177308-0d34-0410-b5e6-96231b3b80d8