[lldb/Target] Add Assert StackFrame Recognizer
When a thread stops, this checks depending on the platform if the top frame is
an abort stack frame. If so, it looks for an assert stack frame in the upper
frames and set it as the most relavant frame when found.
To do so, the StackFrameRecognizer class holds a "Most Relevant Frame" and a
"cooked" stop reason description. When the thread is about to stop, it checks
if the current frame is recognized, and if so, it fetches the recognized frame's
attributes and applies them.
Differential Revision: https://reviews.llvm.org/D73303
Signed-off-by: Med Ismail Bennani <email@example.com>