Use llvm::VersionTuple instead of manual version marshalling

Summary:
This has multiple advantages:
- we need only one function argument/instance variable instead of three
- no need to default initialize variables
- no custom parsing code
- VersionTuple has comparison operators, which makes version comparisons much
  simpler

Reviewers: zturner, friss, clayborg, jingham

Subscribers: emaste, lldb-commits

Differential Revision: https://reviews.llvm.org/D47889

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@334950 91177308-0d34-0410-b5e6-96231b3b80d8
41 files changed