Seeing "Deferred pause from blackboxed script" in the Pause Reason does clarify that something in the Call Stack was blackboxed, but it doesn't indicate what was blackboxed. Given that the debugger effectively ignores blackboxed scripts, we should distinguish them as such in the UI.
Created attachment 383992 [details] Patch
Created attachment 383993 [details] [Image] After Patch is applied
Comment on attachment 383992 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=383992&action=review > Source/WebInspectorUI/UserInterface/Views/CallFrameTreeElement.js:96 > + tooltipSuffix += "\n\n" + WI.UIString("Script ignored when debugging"); This should mention black boxing as a reason why it was ignored.
Created attachment 384076 [details] Patch
Comment on attachment 384076 [details] Patch I also updated the tooltip/contextmenu text for things related to blackboxing so they actually include the word "blackbox" (or something like it).
Comment on attachment 384076 [details] Patch Clearing flags on attachment: 384076 Committed r252745: <https://trac.webkit.org/changeset/252745>
All reviewed patches have been landed. Closing bug.
<rdar://problem/57403149>