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kotlinlang

When I compile my Android project, during de-sugaring (task `app:transformClassesWithStackFramesFixerForDebug`), I get this stack-trace:
(i’m using Arrow 0.7.2)
```
Exception in thread "main" java.lang.NullPointerException: Couldn't find outer class arrow/typeclasses/Foldable$traverse_$1$2 of arrow/typeclasses/Foldable$traverse_$1$2$1
	at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:1079)
	at com.google.devtools.build.android.desugar.ClassVsInterface.isOuterInterface(ClassVsInterface.java:56)
	at com.google.devtools.build.android.desugar.InterfaceDesugaring.visitOuterClass(InterfaceDesugaring.java:246)
	at org.objectweb.asm.ClassReader.accept(ClassReader.java:638)
	at org.objectweb.asm.ClassReader.accept(ClassReader.java:500)
	at com.google.devtools.build.android.desugar.Desugar.desugarClassesInInput(Desugar.java:477)
	at com.google.devtools.build.android.desugar.Desugar.desugarOneInput(Desugar.java:361)
	at com.google.devtools.build.android.desugar.Desugar.desugar(Desugar.java:314)
	at com.google.devtools.build.android.desugar.Desugar.main(Desugar.java:711)
```
This happens when i include the `arrow-instances-core` dependency (i need it for `Either.applicative`)