It would be a great help when working with projects, which have make/build phase. Maybe exact error/hyperlink format can be configured in preferences. It is probably hard to run "make" command in the project directory, because of sandbox limitations, but just having error log file open in editor maybe enough. It will be refreshed after running make outside editor and clicking on error could jump to the error location.
Another scenario is editing markup files with hyperlinks and also, clicking on hyperlink could jump to another file. It could be the same feature, actually.
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