Fix TestNamespace and TestThreadJump for remote Windows to Android.

Summary:
Update DYLDRendezvous and SOEntry to use FileSpecs instead of storing paths as
strings, which caused incorrect comparison results due to denormalization.

Reviewers: clayborg, vharron, ovyalov

Reviewed By: ovyalov

Subscribers: jwolfe, emaste, tberghammer, lldb-commits

Differential Revision: http://reviews.llvm.org/D10267

llvm-svn: 239195