Fix two places where an arm instruction emulation method can dereference misaligned memory. <rdar://problem/31106315>, <rdar://problem/31106337>
Fix two places where an arm instruction emulation method
can dereference misaligned memory.
<rdar://problem/31106315>, <rdar://problem/31106337>

git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@298337 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit f629e2a218049b1e9f9c8be19a43fd10f1a925ff)

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