First pass at a description of the lldb coding conventions.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@223543 91177308-0d34-0410-b5e6-96231b3b80d8
Add a list iterable helper and use it to make a Breakpoint
iterator in the BreakpointList class.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@223544 91177308-0d34-0410-b5e6-96231b3b80d8