[kotlin] KInvocationExprent can't be cast to FieldExprent

[solonovamax]

Vineflower version

1.11.0+local (built from latest git commit)

Describe the bug

When decompiling the kotlin code

this::class.starProjectedType

the error

java.lang.ClassCastException: class org.vineflower.kotlin.expr.KInvocationExprent cannot be cast to class org.jetbrains.java.decompiler.modules.decompiler.exps.FieldExprent (org.vineflower.kotlin.expr.KInvocationExprent is in unnamed module of loader org.jetbrains.java.decompiler.main.plugins.InJarClassLoader @61e4705b; org.jetbrains.java.decompiler.modules.decompiler.exps.FieldExprent is in unnamed module of loader 'app')
  at org.vineflower.kotlin.expr.KFunctionExprent.toJava(KFunctionExprent.java:97)
  at org.jetbrains.java.decompiler.modules.decompiler.exps.FunctionExprent.wrapOperandString(FunctionExprent.java:747)
  at org.jetbrains.java.decompiler.modules.decompiler.exps.FunctionExprent.wrapOperandString(FunctionExprent.java:716)

is emitted

Additional information

The code I encountered this with was (with everything irrelevant removed):

import kotlin.reflect.full.starProjectedType

fun Any.toJsonElement() {
    this::class.starProjectedType
}

however this is not an issue with extension functions, as it still has the same error with the following code:

import kotlin.reflect.full.starProjectedType

public class Test {
    public fun test() {
        this::class.starProjectedType
    }
}

the decompiled result of each of those, respectively, is as follows:

import kotlin.reflect.full.KClassifiers

internal fun Any.toJsonElement() {
   // $VF: Couldn't be decompiled
   // Please report this to the Vineflower issue tracker, at https://github.com/Vineflower/vineflower/issues with a copy of the class file (if you have the rights to distribute it!)
   // java.lang.ClassCastException: class org.vineflower.kotlin.expr.KInvocationExprent cannot be cast to class org.jetbrains.java.decompiler.modules.decompiler.exps.FieldExprent (org.vineflower.kotlin.expr.KInvocationExprent is in unnamed module of loader org.jetbrains.java.decompiler.main.plugins.InJarClassLoader @61e4705b; org.jetbrains.java.decompiler.modules.decompiler.exps.FieldExprent is in unnamed module of loader 'app')
   //   at org.vineflower.kotlin.expr.KFunctionExprent.toJava(KFunctionExprent.java:97)
   //   at org.jetbrains.java.decompiler.modules.decompiler.exps.FunctionExprent.wrapOperandString(FunctionExprent.java:747)
   //   at org.jetbrains.java.decompiler.modules.decompiler.exps.FunctionExprent.wrapOperandString(FunctionExprent.java:716)
   //
   // Bytecode:
   // 00: aload 0
   // 01: ldc "<this>"
   // 03: invokestatic kotlin/jvm/internal/Intrinsics.checkNotNullParameter (Ljava/lang/Object;Ljava/lang/String;)V
   // 06: aload 0
   // 07: invokevirtual java/lang/Object.getClass ()Ljava/lang/Class;
   // 0a: invokestatic kotlin/jvm/internal/Reflection.getOrCreateKotlinClass (Ljava/lang/Class;)Lkotlin/reflect/KClass;
   // 0d: checkcast kotlin/reflect/KClassifier
   // 10: invokestatic kotlin/reflect/full/KClassifiers.getStarProjectedType (Lkotlin/reflect/KClassifier;)Lkotlin/reflect/KType;
   // 13: pop
   // 14: return
}

and

import kotlin.reflect.full.KClassifiers

class Test {
   public fun test() {
      // $VF: Couldn't be decompiled
      // Please report this to the Vineflower issue tracker, at https://github.com/Vineflower/vineflower/issues with a copy of the class file (if you have the rights to distribute it!)
      // java.lang.ClassCastException: class org.vineflower.kotlin.expr.KInvocationExprent cannot be cast to class org.jetbrains.java.decompiler.modules.decompiler.exps.FieldExprent (org.vineflower.kotlin.expr.KInvocationExprent is in unnamed module of loader org.jetbrains.java.decompiler.main.plugins.InJarClassLoader @61e4705b; org.jetbrains.java.decompiler.modules.decompiler.exps.FieldExprent is in unnamed module of loader 'app')
      //   at org.vineflower.kotlin.expr.KFunctionExprent.toJava(KFunctionExprent.java:97)
      //   at org.jetbrains.java.decompiler.modules.decompiler.exps.FunctionExprent.wrapOperandString(FunctionExprent.java:747)
      //   at org.jetbrains.java.decompiler.modules.decompiler.exps.FunctionExprent.wrapOperandString(FunctionExprent.java:716)
      //
      // Bytecode:
      // 0: aload 0
      // 1: invokevirtual java/lang/Object.getClass ()Ljava/lang/Class;
      // 4: invokestatic kotlin/jvm/internal/Reflection.getOrCreateKotlinClass (Ljava/lang/Class;)Lkotlin/reflect/KClass;
      // 7: checkcast kotlin/reflect/KClassifier
      // a: invokestatic kotlin/reflect/full/KClassifiers.getStarProjectedType (Lkotlin/reflect/KClassifier;)Lkotlin/reflect/KType;
      // d: pop
      // e: return
   }
}

I believe the issue has something to do with the starProjectedType

Attempting to decompile it with quiltflower produces the following result (respectively):

import kotlin.Metadata;
import kotlin.jvm.internal.Intrinsics;
import kotlin.jvm.internal.Reflection;
import kotlin.reflect.KClassifier;
import kotlin.reflect.full.KClassifiers;
import org.jetbrains.annotations.NotNull;

@Metadata(
   mv = {1, 8, 0},
   k = 2,
   xi = 48,
   d1 = {"\u0000\f\n\u0000\n\u0002\u0010\u0002\n\u0002\u0010\u0000\n\u0000\u001a\f\u0010\u0000\u001a\u00020\u0001*\u00020\u0002H\u0000¨\u0006\u0003"},
   d2 = {"toJsonElement", "", "", "nyx"}
)
public final class SerializationUtilKt {
   public static final void toJsonElement(@NotNull Object $this$toJsonElement) {
      Intrinsics.checkNotNullParameter($this$toJsonElement, "<this>");
      KClassifiers.getStarProjectedType((KClassifier)Reflection.getOrCreateKotlinClass($this$toJsonElement.getClass()));
   }
}

and

import kotlin.Metadata;
import kotlin.jvm.internal.Reflection;
import kotlin.reflect.KClassifier;
import kotlin.reflect.full.KClassifiers;

@Metadata(
   mv = {1, 8, 0},
   k = 1,
   xi = 48,
   d1 = {"\u0000\u0012\n\u0002\u0018\u0002\n\u0002\u0010\u0000\n\u0002\b\u0002\n\u0002\u0010\u0002\n\u0000\u0018\u00002\u00020\u0001B\u0005¢\u0006\u0002\u0010\u0002J\u0006\u0010\u0003\u001a\u00020\u0004¨\u0006\u0005"},
   d2 = {"Lca/solostudios/nyx/internal/util/Test;", "", "()V", "test", "", "nyx"}
)
public final class Test {
   public final void test() {
      KClassifiers.getStarProjectedType((KClassifier)Reflection.getOrCreateKotlinClass(this.getClass()));
   }
}

Interestingly, vineflower does not emit the kotlin.jvm.internal.Reflection or kotlin.reflect.KClassifier imports, however it does emit the kotlin.reflect.full.KClassifiers import.