Debugger.setInstrumentationBreakpoint is broken

[ulitink]

• Version: v14.0.0-pre, master branch
• Platform: Linux
• Subsystem: inspector

Newly added Debugger.setInstrumentationBreakpoint inspector API doesn't work for me. Changes were introduced for request #24687. The same API works fine in Chrome.

I've created a test #31137. Breakpoints for scripts with sourcemaps only don't work either. If I use the protocol incorrectly, please let me know which additional methods should be called.

[addaleax]

@nodejs/v8-inspector

[Soarex16]

Any updates for this issue?