Add compose compiler test cases for fixed issues (#4268)

fixes
https://github.com/JetBrains/compose-multiplatform/issues/3318
https://github.com/JetBrains/compose-multiplatform/issues/3643
https://github.com/JetBrains/compose-multiplatform/issues/4055

compose/integrations/composable-test-cases/testcases/inheritance/composableInterface/lib/src/commonMain/kotlin/Dependencies.kt

@@ -1,4 +1,6 @@
 import androidx.compose.runtime.Composable
+import com.example.common.TextLeafNode
+import kotlin.jvm.JvmInline
 
 
 interface ComposableContent {
@@ -14,3 +16,35 @@ interface CollectionOfComposable {
 
     fun iterator(): Iterator<@Composable () -> Unit>
 }
+
+interface DefaultComposableContent {
+    @Composable
+    @Suppress("ABSTRACT_COMPOSABLE_DEFAULT_PARAMETER_VALUE")
+    fun ComposableContent(
+        any: String = "any" // default value is required to reproduce
+    ) {
+        TextLeafNode("DefaultComposableContent - $any")
+    }
+}
+
+abstract class AbstractGreeter {
+    @Composable
+    protected abstract fun Greeting()
+
+    @Composable
+    fun Hi() {
+        Greeting()
+    }
+}
+
+class Greeter(val target: String) : AbstractGreeter() {
+    @Composable
+    override fun Greeting() {
+        TextLeafNode("Hello, $target!")
+    }
+}
+
+@JvmInline
+value class ValClass(val key: Int) {
+    constructor(a: Int, b: Int) : this(a + b)
+}

compose/integrations/composable-test-cases/testcases/inheritance/composableInterface/main/src/commonTest/kotlin/CollectionOfComposablesTests.kt

@@ -1,3 +1,4 @@
+import androidx.compose.runtime.Composable
 import com.example.common.TextContainerNode
 import com.example.common.TextLeafNode
 import com.example.common.composeText
@@ -37,4 +38,54 @@ class CollectionOfComposablesTests {
             actual = root.dump()
         )
     }
+
+    /** Default args for overridden composable produces corrupted function definitions
+     *  https://github.com/JetBrains/compose-multiplatform/issues/3318
+     */
+    @Test
+    fun testDefaultArgsForOverridden() = runTest {
+        class Impl : DefaultComposableContent
+        
+        val root = composeText {
+            Impl().ComposableContent()
         }
+
+        assertEquals(
+            expected = "root:{DefaultComposableContent - any}",
+            actual = root.dump()
+        )
+    }
+
+    /** Override a protected @Composable method leads to Compilation Failed on iOS target
+     * https://github.com/JetBrains/compose-multiplatform/issues/4055
+     */
+    @Test
+    fun testOverrideProtected() = runTest {
+        val root = composeText {
+            Greeter("Bob").Hi()
+        }
+
+        assertEquals(
+            expected = "root:{Hello, Bob!}",
+            actual = root.dump()
+        )
+    }
+
+    /** Default params for value type defined in separate module may result in compilation failure on iOS
+     * https://github.com/JetBrains/compose-multiplatform/issues/3643
+     */
+    @Test
+    fun testDefaultParamValueClass() = runTest {
+        @Composable
+        fun test(qualifiers: ValClass = ValClass(123)): String = "${qualifiers.key}"
+
+        val root = composeText { TextLeafNode(test()) }
+
+        assertEquals(
+            expected = "root:{123}",
+            actual = root.dump()
+        )
+    }
+}
+
+