synthetic methods that represent Kotlin suspend functions should not be ignored

[Godin]

Seems that Kotlin compiler generates synthetic methods for private and open suspending functions:

Example.kt

import kotlinx.coroutines.delay

private suspend fun suspendingFunction(x: Long) {
    delay(x) // line 4
}

open class Open {
    open suspend fun suspendingFunction(x: Long) {
        delay(x) // line 9
    }
}

javap -v -p ExampleKt.class

  static final java.lang.Object suspendingFunction(long, kotlin.coroutines.Continuation<? super kotlin.Unit>);
    descriptor: (JLkotlin/coroutines/Continuation;)Ljava/lang/Object;
    flags: ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC
    Code:
      stack=3, locals=3, args_size=2
         0: lload_0
         1: aload_2
         2: invokestatic  #13                 // Method kotlinx/coroutines/DelayKt.delay:(JLkotlin/coroutines/Continuation;)Ljava/lang/Object;
         5: areturn
      LocalVariableTable:
        Start  Length  Slot  Name   Signature
            0       6     0     x   J
      LineNumberTable:
        line 4: 0

javap -v -p Open.class

  public java.lang.Object suspendingFunction(long, kotlin.coroutines.Continuation<? super kotlin.Unit>);
    descriptor: (JLkotlin/coroutines/Continuation;)Ljava/lang/Object;
    flags: ACC_PUBLIC
    Code:
      stack=4, locals=4, args_size=3
         0: aload_0
         1: lload_1
         2: aload_3
         3: invokestatic  #12                 // Method suspendingFunction$suspendImpl:(LOpen;JLkotlin/coroutines/Continuation;)Ljava/lang/Object;
         6: areturn

  static java.lang.Object suspendingFunction$suspendImpl(Open, long, kotlin.coroutines.Continuation);
    descriptor: (LOpen;JLkotlin/coroutines/Continuation;)Ljava/lang/Object;
    flags: ACC_STATIC, ACC_SYNTHETIC
    Code:
      stack=3, locals=4, args_size=3
         0: lload_1
         1: aload_3
         2: invokestatic  #17                 // Method kotlinx/coroutines/DelayKt.delay:(JLkotlin/coroutines/Continuation;)Ljava/lang/Object;
         5: areturn
      LocalVariableTable:
        Start  Length  Slot  Name   Signature
            0       6     0  this   LOpen;
            0       6     1     x   J
      LineNumberTable:
        line 9: 0

[marchof]

@Godin Thx!