Improve TestConcurrentEvents.py
- code cleanup, improved reporting when failures take place
- ensure known thread is interrupted by using pthread_kill() instead of kill() in the signal worker thread
- above should avoid llvm.org/pr16567 on Mac OS X (though kill() could still cause threads to pop out of existance temporarily)
- added an additional check that all threads have exited after worker threads are all join()ed
- logged llvm.org/pr16603 for the new Linux bug discovered



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@186124 91177308-0d34-0410-b5e6-96231b3b80d8
Enable Mac OS X tests disabled due to llvm.org/pr16567
- thread count remains correct now that we use pthread_kill() instead of kill() to deliver signals



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@186126 91177308-0d34-0410-b5e6-96231b3b80d8
Added a memory.py module that contains a 'memfind' command which allows you to search memory for a byte pattern.



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@186127 91177308-0d34-0410-b5e6-96231b3b80d8
Tentatively re-enabling TestBreakAfterJoin on Linux
- Unable to reproduce llvm.org/pr16170 locally



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@186129 91177308-0d34-0410-b5e6-96231b3b80d8
Huge change to clean up types.

A long time ago we start with clang types that were created by the symbol files and there were many functions in lldb_private::ClangASTContext that helped. Later we create ClangASTType which contains a clang::ASTContext and an opauque QualType, but we didn't switch over to fully using it. There were a lot of places where we would pass around a raw clang_type_t and also pass along a clang::ASTContext separately. This left room for error.

This checkin change all type code over to use ClangASTType everywhere and I cleaned up the interfaces quite a bit. Any code that was in ClangASTContext that was type related, was moved over into ClangASTType. All code that used these types was switched over to use all of the new goodness.



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@186130 91177308-0d34-0410-b5e6-96231b3b80d8