Merge pull request github#14860 from igfoo/igfoo/isFake

Kotlin 2: isFake is currently broken, so assume not fake for now

Author: igfoo

java/kotlin-extractor/src/main/kotlin/KotlinFileExtractor.kt

@@ -80,6 +80,7 @@ open class KotlinFileExtractor(
     globalExtensionState: KotlinExtractorGlobalState,
 ): KotlinUsesExtractor(logger, tw, dependencyCollector, externalClassExtractor, primitiveTypeMapping, pluginContext, globalExtensionState) {
 
+    val usesK2 = usesK2(pluginContext)
     val metaAnnotationSupport = MetaAnnotationSupport(logger, pluginContext, this)
 
     private inline fun <T> with(kind: String, element: IrElement, f: () -> T): T {
@@ -166,22 +167,26 @@ open class KotlinFileExtractor(
             else -> false
         }
 
-    @OptIn(ObsoleteDescriptorBasedAPI::class)
-    private fun isFake(d: IrDeclarationWithVisibility): Boolean {
-        val hasFakeVisibility = d.visibility.let { it is DelegatedDescriptorVisibility && it.delegate == Visibilities.InvisibleFake } || d.isFakeOverride
-        if (hasFakeVisibility && !isJavaBinaryObjectMethodRedeclaration(d))
-            return true
+    private fun FunctionDescriptor.tryIsHiddenToOvercomeSignatureClash(d: IrFunction): Boolean {
         try {
-            if ((d as? IrFunction)?.descriptor?.isHiddenToOvercomeSignatureClash == true) {
-                return true
-            }
+            return this.isHiddenToOvercomeSignatureClash
         }
         catch (e: NotImplementedError) {
             // `org.jetbrains.kotlin.ir.descriptors.IrBasedClassConstructorDescriptor.isHiddenToOvercomeSignatureClash` throws the exception
-            logger.warnElement("Couldn't query if element is fake, deciding it's not.", d, e)
+            // TODO: We need a replacement for this for Kotlin 2
+            if (!usesK2) {
+                logger.warnElement("Couldn't query if element is fake, deciding it's not.", d, e)
+            }
             return false
         }
-        return false
+    }
+
+    @OptIn(ObsoleteDescriptorBasedAPI::class)
+    private fun isFake(d: IrDeclarationWithVisibility): Boolean {
+        val hasFakeVisibility = d.visibility.let { it is DelegatedDescriptorVisibility && it.delegate == Visibilities.InvisibleFake } || d.isFakeOverride
+        if (hasFakeVisibility && !isJavaBinaryObjectMethodRedeclaration(d))
+            return true
+        return (d as? IrFunction)?.descriptor?.tryIsHiddenToOvercomeSignatureClash(d) == true
     }
 
     private fun shouldExtractDecl(declaration: IrDeclaration, extractPrivateMembers: Boolean) =