BridgeJS: Fix classes without @js init constructors

Author: kateinoigakukun

Plugins/BridgeJS/Sources/BridgeJSLink/BridgeJSLink.swift

@@ -488,19 +488,23 @@ struct BridgeJSLink {
         dtsExportEntryLines.append("\(klass.name): {")
         jsLines.append("class \(klass.name) extends SwiftHeapObject {")
 
+        // Always add __construct and constructor methods for all classes
+        var constructorLines: [String] = []
+        constructorLines.append("static __construct(ptr) {")
+        constructorLines.append("return new \(klass.name)(ptr, instance.exports.bjs_\(klass.name)_deinit);".indent(count: 4))
+        constructorLines.append("}")
+        constructorLines.append("")
+        constructorLines.append("constructor(pointer, deinit) {")
+        constructorLines.append("super(pointer, deinit);".indent(count: 4))
+        constructorLines.append("}")
+        jsLines.append(contentsOf: constructorLines.map { $0.indent(count: 4) })
+
         if let constructor: ExportedConstructor = klass.constructor {
             let thunkBuilder = ExportedThunkBuilder(effects: constructor.effects)
             for param in constructor.parameters {
                 thunkBuilder.lowerParameter(param: param)
             }
             var funcLines: [String] = []
-            funcLines.append("static __construct(ptr) {")
-            funcLines.append("return new \(klass.name)(ptr, instance.exports.bjs_\(klass.name)_deinit);".indent(count: 4))
-            funcLines.append("}")
-            funcLines.append("")
-            funcLines.append("constructor(pointer, deinit) {")
-            funcLines.append("super(pointer, deinit);".indent(count: 4))
-            funcLines.append("}")
             funcLines.append("")
             funcLines.append("static init(\(constructor.parameters.map { $0.name }.joined(separator: ", "))) {")
             let returnExpr = thunkBuilder.callConstructor(abiName: constructor.abiName)