void (@NotNull PsiElement anchor, @NotNull TypeMismatch mismatch) { Convertible convertible = mismatch.isConvertible(); if (convertible == Convertible.CONVERTIBLE_MUTUAL_SUBCLASS_UNKNOWN) { registerPossibleProblem(anchor); } else { registerError(anchor, mismatch.getLeft(), mismatch.getRight(), convertible != Convertible.NOT_CONVERTIBLE); } }