Use Timeout<> in Process::RunThreadPlan
Use Timeout<> in Process::RunThreadPlan

Summary:
Since the function is way too big already, I tried at least to factor out the
timeout computation stuff into a separate function. I've tried to make the new
code semantically equivalent, and it also makes sense when I look at it as a done
deal.

Reviewers: jingham

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D27258

git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@288326 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-lldb,llvm-mirror/lldb,apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb