[Wasm] Imporove external interface support

* Support boxing/unboxing when casting to Any
* Support ===, equals, hashCode, toString

* Support adapting String in interop boundary

libraries/stdlib/wasm/src/generated/_WasmOp.kt

@@ -216,6 +216,12 @@ internal annotation class WasmOp(val name: String) {
         const val RETURN = "RETURN"
         const val CALL = "CALL"
         const val CALL_INDIRECT = "CALL_INDIRECT"
+        const val TRY = "TRY"
+        const val CATCH = "CATCH"
+        const val CATCH_ALL = "CATCH_ALL"
+        const val DELEGATE = "DELEGATE"
+        const val THROW = "THROW"
+        const val RETHROW = "RETHROW"
         const val DROP = "DROP"
         const val SELECT = "SELECT"
         const val SELECT_TYPED = "SELECT_TYPED"
@@ -255,5 +261,19 @@ internal annotation class WasmOp(val name: String) {
         const val REF_TEST = "REF_TEST"
         const val REF_CAST = "REF_CAST"
         const val BR_ON_CAST = "BR_ON_CAST"
+        const val BR_ON_CAST_FAIL = "BR_ON_CAST_FAIL"
+        const val REF_IS_FUNC = "REF_IS_FUNC"
+        const val REF_IS_DATA = "REF_IS_DATA"
+        const val REF_IS_I31 = "REF_IS_I31"
+        const val REF_AS_FUNC = "REF_AS_FUNC"
+        const val REF_AS_DATA = "REF_AS_DATA"
+        const val REF_AS_I31 = "REF_AS_I31"
+        const val BR_ON_FUNC = "BR_ON_FUNC"
+        const val BR_ON_DATA = "BR_ON_DATA"
+        const val BR_ON_I31 = "BR_ON_I31"
+        const val BR_ON_NON_FUNC = "BR_ON_NON_FUNC"
+        const val BR_ON_NON_DATA = "BR_ON_NON_DATA"
+        const val BR_ON_NON_I31 = "BR_ON_NON_I31"
+        const val GET_UNIT = "GET_UNIT"
     }
 }

libraries/stdlib/wasm/src/kotlin/js/annotations.kt

@@ -13,4 +13,18 @@ package kotlin.js
 @ExperimentalJsExport
 @Retention(AnnotationRetention.BINARY)
 @Target(AnnotationTarget.FUNCTION)
-public actual annotation class JsExport
+public actual annotation class JsExport
+
+/**
+ * Specifies JavaScript name for external and imported declarations
+ */
+@Retention(AnnotationRetention.BINARY)
+@Target(
+    AnnotationTarget.CLASS,
+    AnnotationTarget.FUNCTION,
+    AnnotationTarget.PROPERTY,
+    AnnotationTarget.CONSTRUCTOR,
+    AnnotationTarget.PROPERTY_GETTER,
+    AnnotationTarget.PROPERTY_SETTER
+)
+public actual annotation class JsName(actual val name: String)