Foreach -Parallel Breakpoints?

Just thought I'd throw this discussion point out there.

If we know by the AST that someone is doing foreach -parallel, we are going to know the behavior. Can we hook into those created runspaces and drop breakpoints there, and then maybe monitor for them to go into InBreakpoint state and trigger the debugger there?

The net effect would be that users could put breakpoints in a Foreach -Parallel loop and expect it to break there for troubleshooting parallel runs, rather than the current procedure of removing -Parallel and any $USING references in order to debug.

Probably not feasible, lots of issues:

1. How do we pause the other runspaces at the same time
2. Have to fetch all the state and ensure it works the same thru all the existing tests
3. etc.

未指定文件、测试或入口点。首先需要确定 Foreach -Parallel 在哪里创建和管理 runspace，以及如何处理 Breakpoint 和 InBreakpoint 状态。要完成这项工作，需要一个明确的设计，支持并行循环中的断点，同时协调其他 runspace 并保持现有行为。