[Wasm] Build bridges for non-virtual functions that implement interfaces

compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/lower/WasmBridgesConstruction.kt

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.backend.wasm.lower
 
+import org.jetbrains.kotlin.backend.common.ir.isOverridableOrOverrides
 import org.jetbrains.kotlin.backend.wasm.ir2wasm.erasedUpperBound
 import org.jetbrains.kotlin.ir.IrBuiltIns
 import org.jetbrains.kotlin.ir.backend.js.JsCommonBackendContext
@@ -32,12 +33,19 @@ data class WasmSignature(
     val name: Name,
     val extensionReceiverType: IrType?,
     val valueParametersType: List<IrType>,
-    val returnType: IrType
+    val returnType: IrType,
+    // Needed for bridges to final non-override methods
+    // that indirectly implement interfaces. For example:
+    //    interface I { fun foo() }
+    //    class C1 { fun foo() {} }
+    //    class C2 : C1(), I
+    val isVirtual: Boolean,
 ) {
     override fun toString(): String {
         val er = extensionReceiverType?.let { "(er: ${it.render()}) " } ?: ""
         val parameters = valueParametersType.joinToString(", ") { it.render() }
-        return "[$er$name($parameters) -> ${returnType.render()}]"
+        val nonVirtual =  if (!isVirtual) "(non-virtual) " else ""
+        return "[$nonVirtual$er$name($parameters) -> ${returnType.render()}]"
     }
 }
 
@@ -46,7 +54,8 @@ fun IrSimpleFunction.wasmSignature(irBuiltIns: IrBuiltIns): WasmSignature =
         name,
         extensionReceiverParameter?.type?.eraseGenerics(irBuiltIns),
         valueParameters.map { it.type.eraseGenerics(irBuiltIns) },
-        returnType.eraseGenerics(irBuiltIns)
+        returnType.eraseGenerics(irBuiltIns),
+        isOverridableOrOverrides
     )
 
 private fun IrType.eraseGenerics(irBuiltIns: IrBuiltIns): IrType {

compiler/testData/codegen/box/callableReference/function/local/enumExtendsTrait.kt

@@ -1,6 +1,3 @@
-// DONT_TARGET_EXACT_BACKEND: WASM
-// WASM_MUTE_REASON: IMPLICIT_INTERFACE_METHOD_IMPL
-
 interface Named {
     val name: String
 }

compiler/testData/codegen/box/regressions/kt4142.kt

@@ -1,6 +1,3 @@
-// DONT_TARGET_EXACT_BACKEND: WASM
-// WASM_MUTE_REASON: IMPLICIT_INTERFACE_METHOD_IMPL
-
 open class B {
     val name: String
         get() = "OK"

js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/wasm/semantics/IrCodegenBoxWasmTestGenerated.java

@@ -1960,6 +1960,11 @@ public class IrCodegenBoxWasmTestGenerated extends AbstractIrCodegenBoxWasmTest
                     runTest("compiler/testData/codegen/box/callableReference/function/local/constructorWithInitializer.kt");
                 }
 
+                @TestMetadata("enumExtendsTrait.kt")
+                public void testEnumExtendsTrait() throws Exception {
+                    runTest("compiler/testData/codegen/box/callableReference/function/local/enumExtendsTrait.kt");
+                }
+
                 @TestMetadata("extension.kt")
                 public void testExtension() throws Exception {
                     runTest("compiler/testData/codegen/box/callableReference/function/local/extension.kt");
@@ -14981,6 +14986,11 @@ public class IrCodegenBoxWasmTestGenerated extends AbstractIrCodegenBoxWasmTest
             runTest("compiler/testData/codegen/box/regressions/kt39088.kt");
         }
 
+        @TestMetadata("kt4142.kt")
+        public void testKt4142() throws Exception {
+            runTest("compiler/testData/codegen/box/regressions/kt4142.kt");
+        }
+
         @TestMetadata("kt4281.kt")
         public void testKt4281() throws Exception {
             runTest("compiler/testData/codegen/box/regressions/kt4281.kt");