The list of breakpoints at which we are currently paused for a PauseBreakpoint event.
This list may be empty. For example, while single-stepping, the VM sends a PauseBreakpoint event with no breakpoints.
If there is more than one breakpoint set at the program position, then all of them will be provided.
This is provided for the event kinds:
@optional List<Breakpoint> pauseBreakpoints;