feat(errors): add coroutine template diagnostics #156

Job	Run time
Static Analysis	5m 45s
Configuration Coverage	7m 22s
Standalone Package Export Check	4m 39s
Build (gcc)	3m 51s
Valgrind Checks	3m 40s
Runtime Smoke Checks	3m 46s
Build (clang)	4m 18s
CLI Strict CI Summary	2s
	33m 23s

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