[K2 MPP] Fix hasStableParameterNames check for fake overrides

This fixes a false positive error regarding different
parameter names in expect actual matching with fake overrides.

#KT-59737 Fixed

compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirOldFrontendMPPDiagnosticsWithLightTreeTestGenerated.java

@@ -730,6 +730,12 @@ public class FirOldFrontendMPPDiagnosticsWithLightTreeTestGenerated extends Abst
             runTest("compiler/testData/diagnostics/tests/multiplatform/java/flexibleTypes.kt");
         }
 
+        @Test
+        @TestMetadata("inheritedJavaMembers.kt")
+        public void testInheritedJavaMembers() throws Exception {
+            runTest("compiler/testData/diagnostics/tests/multiplatform/java/inheritedJavaMembers.kt");
+        }
+
         @Test
         @TestMetadata("parameterNames.kt")
         public void testParameterNames() throws Exception {

compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirOldFrontendMPPDiagnosticsWithPsiTestGenerated.java

@@ -730,6 +730,12 @@ public class FirOldFrontendMPPDiagnosticsWithPsiTestGenerated extends AbstractFi
             runTest("compiler/testData/diagnostics/tests/multiplatform/java/flexibleTypes.kt");
         }
 
+        @Test
+        @TestMetadata("inheritedJavaMembers.kt")
+        public void testInheritedJavaMembers() throws Exception {
+            runTest("compiler/testData/diagnostics/tests/multiplatform/java/inheritedJavaMembers.kt");
+        }
+
         @Test
         @TestMetadata("parameterNames.kt")
         public void testParameterNames() throws Exception {

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/mpp/FirExpectActualMatchingContext.kt

@@ -9,7 +9,10 @@ import org.jetbrains.kotlin.descriptors.ClassKind
 import org.jetbrains.kotlin.descriptors.Modality
 import org.jetbrains.kotlin.descriptors.Visibility
 import org.jetbrains.kotlin.fir.FirSession
-import org.jetbrains.kotlin.fir.declarations.*
+import org.jetbrains.kotlin.fir.declarations.FirDeclarationOrigin
+import org.jetbrains.kotlin.fir.declarations.FirResolvePhase
+import org.jetbrains.kotlin.fir.declarations.collectEnumEntries
+import org.jetbrains.kotlin.fir.declarations.isAnnotationConstructor
 import org.jetbrains.kotlin.fir.isSubstitutionOrIntersectionOverride
 import org.jetbrains.kotlin.fir.resolve.*
 import org.jetbrains.kotlin.fir.resolve.substitution.ConeSubstitutor
@@ -301,10 +304,5 @@ class FirExpectActualMatchingContext(
     }
 
     override val CallableSymbolMarker.hasStableParameterNames: Boolean
-        get() = when (asSymbol().origin) {
-            is FirDeclarationOrigin.Java,
-            FirDeclarationOrigin.Enhancement,
-            FirDeclarationOrigin.DynamicScope -> false
-            else -> true
-        }
+        get() = asSymbol().rawStatus.hasStableParameterNames
 }

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/actualizer/IrExpectActualMatchingContext.kt

@@ -407,11 +407,19 @@ internal abstract class IrExpectActualMatchingContext(
     }
 
     override val CallableSymbolMarker.hasStableParameterNames: Boolean
-        get() = when (asIr().origin) {
-            IrDeclarationOrigin.IR_EXTERNAL_DECLARATION_STUB,
-            IrDeclarationOrigin.IR_EXTERNAL_JAVA_DECLARATION_STUB,
-            -> false
-            else -> true
+        get() {
+            var ir = asIr()
+
+            if (ir.isFakeOverride && ir is IrOverridableDeclaration<*>) {
+                ir.resolveFakeOverrideOrNull()?.let { ir = it }
+            }
+
+            return when (ir.origin) {
+                IrDeclarationOrigin.IR_EXTERNAL_DECLARATION_STUB,
+                IrDeclarationOrigin.IR_EXTERNAL_JAVA_DECLARATION_STUB,
+                -> false
+                else -> true
+            }
         }
 
     override fun onMatchedMembers(expectSymbol: DeclarationSymbolMarker, actualSymbol: DeclarationSymbolMarker) {

compiler/testData/diagnostics/tests/multiplatform/java/inheritedJavaMembers.kt

@@ -0,0 +1,76 @@
+// FIR_IDENTICAL
+// WITH_STDLIB
+
+// MODULE: m1-common
+// FILE: common.kt
+
+interface MutableListEx<E> : MutableList<E> {
+    fun removeRange(fromIndex: Int, toIndex: Int)
+    fun addAll(elements: FastArrayList<E>): Boolean = addAll(elements as Collection<E>)
+    fun setAddAll(index: Int, elements: FastArrayList<E>, offset: Int = 0, size: Int = elements.size - offset) {}
+    fun setAll(index: Int, elements: FastArrayList<E>, offset: Int = 0, size: Int = elements.size - offset) {}
+    fun addAll(elements: FastArrayList<E>, offset: Int = 0, size: Int = elements.size - offset) {}
+    fun removeToSize(size: Int) {}
+}
+
+expect class FastArrayList<E> : MutableListEx<E>, RandomAccess {
+    constructor()
+    constructor(initialCapacity: Int)
+    constructor(elements: Collection<E>)
+
+    fun trimToSize()
+    fun ensureCapacity(minCapacity: Int)
+    override val size: Int
+    override fun isEmpty(): Boolean
+    override fun contains(element: @UnsafeVariance E): Boolean
+    override fun containsAll(elements: Collection<@UnsafeVariance E>): Boolean
+    override operator fun get(index: Int): E
+    override fun indexOf(element: @UnsafeVariance E): Int
+    override fun lastIndexOf(element: @UnsafeVariance E): Int
+    override fun iterator(): MutableIterator<E>
+    override fun add(element: E): Boolean
+    override fun remove(element: E): Boolean
+    override fun addAll(elements: Collection<E>): Boolean
+    override fun addAll(index: Int, elements: Collection<E>): Boolean
+    override fun removeAll(elements: Collection<E>): Boolean
+    override fun retainAll(elements: Collection<E>): Boolean
+    override fun clear()
+    override operator fun set(index: Int, element: E): E
+    override fun add(index: Int, element: E)
+    override fun removeAt(index: Int): E
+    override fun listIterator(): MutableListIterator<E>
+    override fun listIterator(index: Int): MutableListIterator<E>
+    override fun subList(fromIndex: Int, toIndex: Int): MutableList<E>
+}
+
+// MODULE: m2-jvm()()(m1-common)
+// FILE: jvm.kt
+
+public actual open class FastArrayList<E> internal constructor(
+    var array: Array<Any?>,
+    var _size: Int = array.size,
+    var arrayCapacity: Int = array.size,
+) : AbstractMutableList<E>(), MutableListEx<E>, RandomAccess {
+    public actual constructor() : this(arrayOfNulls(16), 0) {}
+    public actual constructor(initialCapacity: Int) : this(arrayOfNulls(initialCapacity), 0) {}
+    public actual constructor(elements: Collection<E>) : this(elements.toTypedArray<Any?>()) {}
+
+    public actual fun trimToSize() {}
+    public actual fun ensureCapacity(minCapacity: Int) {}
+    actual override val size: Int get() = _size
+    @Suppress("UNCHECKED_CAST") actual override fun get(index: Int): E = array[0] as E
+    actual override fun set(index: Int, element: E): E = element
+    actual override fun add(element: E): Boolean = true
+    actual override fun add(index: Int, element: E) {}
+    actual override fun addAll(elements: Collection<E>): Boolean = true
+    actual override fun addAll(index: Int, elements: Collection<E>): Boolean = true
+    actual override fun remove(element: E): Boolean = true
+    @Suppress("UNCHECKED_CAST") actual override fun removeAt(index: Int): E = array[0] as E
+    override fun removeRange(fromIndex: Int, toIndex: Int) {}
+    override fun setAll(index: Int, elements: FastArrayList<E>, offset: Int, size: Int) {}
+    override fun addAll(elements: FastArrayList<E>, offset: Int, size: Int) {}
+    actual override fun clear() {}
+    actual override fun contains(element: E): Boolean = false
+    actual override fun indexOf(element: E): Int = -1
+    actual override fun lastIndexOf(element: E): Int = -1
+}

compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/DiagnosticTestGenerated.java

@@ -23215,6 +23215,12 @@ public class DiagnosticTestGenerated extends AbstractDiagnosticTest {
                     runTest("compiler/testData/diagnostics/tests/multiplatform/java/flexibleTypes.kt");
                 }
 
+                @Test
+                @TestMetadata("inheritedJavaMembers.kt")
+                public void testInheritedJavaMembers() throws Exception {
+                    runTest("compiler/testData/diagnostics/tests/multiplatform/java/inheritedJavaMembers.kt");
+                }
+
                 @Test
                 @TestMetadata("parameterNames.kt")
                 public void testParameterNames() throws Exception {