Python 3: decode string as utf-8 to avoid type mismatch.
Python 3: decode string as utf-8 to avoid type mismatch.

rdar://problem/51464644

Differential Revision: https://reviews.llvm.org/D63311

git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@363413 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit e92fb6a5cf4156579cc0ebaeed751b207909cee1)

apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb