KT element: KtParenthesizedExpression
FIR element: FirIntegerLiteralOperatorCallImpl
FIR source kind: KtRealSourceElementKind

FIR element rendered:
Int(1).R|kotlin/Int.plus|(Int(2))

FIR FILE:
FILE: [ResolvedTo(IMPORTS)] parenthesizedExpressionScript.kts
    SCRIPT: [ResolvedTo(TYPES)] <script-parenthesizedExpressionScript.kts>
        [ResolvedTo(TYPES)] <script receiver parameter>: R|kotlin/script/templates/standard/ScriptTemplateWithArgs|
        [ResolvedTo(TYPES)] lval args: R|kotlin/Array<kotlin/String>|

        public final [ResolvedTo(BODY_RESOLVE)] val x: R|kotlin/Int| = Int(1).R|kotlin/Int.plus|(Int(2))
            public [ResolvedTo(BODY_RESOLVE)] get(): R|kotlin/Int|