Reverse out r219169 related to quote handling.

Addresses pr/21190 (http://llvm.org/bugs/show_bug.cgi?id=21190).

r219169 implemented this change list:
http://reviews.llvm.org/D5472 for more details.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@219461 91177308-0d34-0410-b5e6-96231b3b80d8