Fix generation of class companion object

src/converter/plugins/convertClassDeclaration.ts

@@ -141,7 +141,7 @@ export const convertClassDeclaration = createSimplePlugin((node, context, render
     let companionObject = ""
 
     if (staticMembers.length > 0) {
-        companionObject = `
+        companionObject = "\n" + `
         
 companion object {
 ${staticMembers}${ifPresent(staticInjectedMembers, it => `\n${it}`)}

test/functional/base/generated/class/simple.kt

@@ -0,0 +1,21 @@
+// Generated by Karakum - do not modify it manually!
+
+@file:JsModule("sandbox-base/class/simple")
+@file:Suppress(
+    "NON_EXTERNAL_DECLARATION_IN_INAPPROPRIATE_FILE",
+)
+
+package sandbox.base.`class`
+
+external class SimpleClass {
+var firstField: String
+var secondField: Double
+fun firstMethod(firstParam: String, secondParam: Double): Unit
+fun secondMethod(firstParam: String, secondParam: Double): Boolean
+companion object {
+var firstStaticField: String
+var secondStaticField: Double
+fun firstStaticMethod(firstParam: String, secondParam: Double): Unit
+fun secondStaticMethod(firstParam: String, secondParam: Double): Boolean
+}
+}

test/functional/base/generated/typeLiteral/functionReturnType.kt

@@ -10,6 +10,7 @@ package sandbox.base.typeLiteral
 external fun useRevalidator(): UseRevalidatorResult
 
 external class MyClass {
+
 companion object {
 fun getDerivedStateFromProps(): MyClassGetDerivedStateFromPropsResult
 }

test/functional/base/lib/class/simple.d.ts

@@ -0,0 +1,13 @@
+export class SimpleClass {
+    static firstStaticField: string;
+    static secondStaticField: number;
+
+    static firstStaticMethod(firstParam: string, secondParam: number): void;
+    static secondStaticMethod(firstParam: string, secondParam: number): boolean;
+
+    firstField: string;
+    secondField: number;
+
+    firstMethod(firstParam: string, secondParam: number): void;
+    secondMethod(firstParam: string, secondParam: number): boolean;
+}