[lldb-mi] Re-implement MI HandleProcessEventStateSuspended.
[lldb-mi] Re-implement MI HandleProcessEventStateSuspended.

Summary: Now this function uses SB API instead of HandleCommand.

Reviewers: aprantl, clayborg, labath

Reviewed By: aprantl

Subscribers: ki.stfu, lldb-commits

Differential Revision: https://reviews.llvm.org/D49632

git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@339160 91177308-0d34-0410-b5e6-96231b3b80d8

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