JVM_IR make $deserializeLambda$ method synthetic

compiler/testData/codegen/bytecodeListing/deserializeLambdaMethod.kt

@@ -0,0 +1,17 @@
+// IGNORE_BACKEND: JVM
+
+// FILE: deserializeLambdaMethod.kt
+
+fun plusK(s: String) = s + "K"
+
+// Creating a serializable lambda causes '$deserializeLambda$' method to be generated in the corresponding class.
+// Given equivalent code, javac generates
+//      private static synthetic $deserializeLambda$(Ljava/lang/invoke/SerializedLambda;)Ljava/lang/Object;
+val test = Sam(::plusK)
+
+// FILE: Sam.java
+import java.io.*;
+
+public interface Sam extends Serializable {
+    String get(String s);
+}