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- [`KT-53180`](https://youtrack.jetbrains.com/issue/KT-53180) Kotlin/JS: generated TypeScript constructor can have "TS1016: A required parameter cannot follow an optional parameter" error with certain properties order
- [`KT-39650`](https://youtrack.jetbrains.com/issue/KT-39650) KJS IR: provide a way to enable ES2015 class generation

 * is imported somewhere else and used without directly referencing the object instance
 * itself:
 *
 * ```kt
 * import Foo.bar
 *
 * object Foo { fun String.bar() {} }
 *
 * fun usage() {
 *   "hello".bar() // this call has implicit 'Foo' dispatch receiver
 * }
 * ```
 */
internal val FirResolvedQualifier.isImplicitDispatchReceiver: Boolean
    get() = source?.kind == KtFakeSourceElementKind.ImplicitReceiver

 */
internal class KtFirAnalysisSessionProvider(project: Project) : KtAnalysisSessionProvider(project) {
    // `KtFirAnalysisSession`s must be soft-referenced to allow simultaneous garbage collection of an unused `KtFirAnalysisSession` together
    // with its `LLFirSession`.
    private val cache: ConcurrentMap<KtModule, KtAnalysisSession> = ContainerUtil.createConcurrentSoftValueMap()

     * ---
     *
     * Why not just always provide null for name references? In such case, the following case would be a problem:
     *
     * ```kt
     * fun usage(action: String.(Int) -> String) {
     *   "hello".<expr>action</expr>(10)
     * }
     * ```
     *
     * The user might want to know the type of the `action` callback. If we always return null for the named references,