import org.jetbrains.kotlin.fir.symbols.lazyResolveToPhase
import org.jetbrains.kotlin.fir.types.typeApproximator
import org.jetbrains.kotlin.load.java.JvmAbi
import org.jetbrains.kotlin.load.kotlin.NON_EXISTENT_CLASS_NAME
import org.jetbrains.kotlin.load.kotlin.header.KotlinClassHeader
import org.jetbrains.kotlin.metadata.jvm.deserialization.JvmProtoBufUtil
import org.jetbrains.kotlin.metadata.jvm.serialization.JvmStringTable

    override val name: String,
    override val existing: List<KtSymbol>,
    firDiagnostic: KtPsiDiagnostic,
    token: KtLifetimeToken,
) : KtAbstractFirDiagnostic<KtElement>(firDiagnostic, token), KtFirDiagnostic.JsNameClash

internal class JsFakeNameClashImpl(
    override val name: String,
    override val override: KtSymbol,
    override val existing: List<KtSymbol>,
    firDiagnostic: KtPsiDiagnostic,

        //TODO: collect all usages of available symbols in the file and prevent importing symbols that could introduce name clashes, which
        // may alter the meaning of existing code.
        val collector = ElementsToShortenCollector(
            shortenOptions,
            context,
            towerContext,
            file,
            selection,

        val name: String
        val existing: List<KtSymbol>
    }

    interface JsFakeNameClash : KtFirDiagnostic<KtElement> {
        override val diagnosticClass get() = JsFakeNameClash::class
        val name: String
        val override: KtSymbol
        val existing: List<KtSymbol>
    }

    interface WrongJsQualifier : KtFirDiagnostic<KtElement> {

- [`KT-57489`](https://youtrack.jetbrains.com/issue/KT-57489) K2: Incorrectly generated line numbers in companion object access inside class
- [`KT-58947`](https://youtrack.jetbrains.com/issue/KT-58947) Run all existing codegen box tests with kapt stub generation
- [`KT-58827`](https://youtrack.jetbrains.com/issue/KT-58827) K2 reports ACTUAL_WITHOUT_EXPECT on the whole class