ad4d1a5ba8
It's implemented as IR checker because in K2 constant expressions are evaluated on backend. FIR diagnostic removed because isn't needed. "annotationViaActualTypeAlias" test has no `// FIR_IDENTICAL` because diagnostic reported on entire typealias declaration instead of its name. This is because in IR+LightTree we have only offsets, so can't navigate to typealias name element. ^KT-59940 Fixed