Make test failure source locations lazy #2330

Job	Run time
🔍 Engine Files Changed / Changed Files	5s
🔍 GUI Files Changed / Changed Files	8s
🔍 IDE Files Changed / Changed Files	7s
📦 Package / Build Backend (linux, amd64)	14m 39s
📦 Package / GUI build (linux, amd64)	7m 29s
📦 Package / Build Backend (windows, amd64)	14m 48s
📦 Package / GUI build (windows, amd64)	27m 23s
📦 Package (Optional) / Build Backend (macos, amd64)	31m 0s
📦 Package (Optional) / GUI build (macos, amd64)	16m 16s
📦 Package / Package New IDE (linux, amd64)	7m 54s
📦 Package / Package New IDE (windows, amd64)	0s
📦 Package (Optional) / Package New IDE (macos, amd64)	32m 51s
IDE Required Checks	1s
	2h 32m 41s

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