*
 * Named functions do not consider their bodies used if
 *  - the function body is a block e.g., `fun foo(): Int { return bar }` or
 *  - the function itself returns Unit
 */
private fun doesNamedFunctionUseBody(namedFunction: KtNamedFunction, body: PsiElement): Boolean = when {
    // The body is a block expression e.g., fun foo(): Int { return bar }
    namedFunction.bodyBlockExpression == body ->
        false