Fix generic signature for KFunctionN types on JVM

#KT-15473 Fixed

compiler/testData/writeSignature/callableReference/constructorReferenceInReturnType.kt

@@ -0,0 +1,11 @@
+// KT-15473 Invalid KFunction byte code signature for callable references
+
+class Request(val id: Long)
+
+open class Foo {
+    open fun request() = ::Request
+}
+
+// method: Foo::request
+// jvm signature:     ()Lkotlin/reflect/KFunction;
+// generic signature: ()Lkotlin/reflect/KFunction<LRequest;>;

compiler/testData/writeSignature/callableReference/functionReferenceInvoke.kt

@@ -10,6 +10,6 @@ fun box(): String {
     return test(Foo()::test)
 }
 
-// method: CallableFunctionKt$box$1::invoke
+// method: FunctionReferenceInvokeKt$box$1::invoke
 // jvm signature:     ()Ljava/lang/String;
 // generic signature: null

compiler/testData/writeSignature/callableReference/propertyReferenceGet.kt

@@ -8,6 +8,6 @@ fun box(): String {
     return test(Foo("OK")::a)
 }
 
-// method: CallablePropertyKt$box$1::get
+// method: PropertyReferenceGetKt$box$1::get
 // jvm signature:     ()Ljava/lang/Object;
 // generic signature: null