Huge speedup for testsuite categories
This ensures that we won't try to do cleanups of test cases that we are skipping
e.g. this brings down the time required to run the cmdline category on my machine from ~70s to ~30s



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@184363 91177308-0d34-0410-b5e6-96231b3b80d8
Implemented a types.py module that allows types to be inspected for padding.

The script was able to point out and save 40 bytes in each lldb_private::Section by being very careful where we need to have virtual destructors and also by re-ordering members.



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@184364 91177308-0d34-0410-b5e6-96231b3b80d8