Non-nullable array `out` parameter mapped to `DNNullableArray<>` in Kotlin

[nil4]

To reproduce: in a #nullable enable C# source (e.g. OutParameterTests.cs in this repo) add methods similar to:

public void Return_StringArray_NotNull(out string[] returnValues) {
    returnValues = [];
}
public void Return_StringArray_Optional(out string[]? returnValues) {
    returnValues = null;
}

The C and Swift generated code have the correct nullability annotations.

However, generated Kotlin methods have mismatched parameter declarations (DNNullableArray<>) vs. their bodies (using DNArray<>), e.g.:

open fun return_StringArray_NotNull(returnValues: ObjectRef<DNNullableArray<System_String>> /* System.String[] */) {
	val __returnValuesJNAByRef = returnValues.toJNARef()
	val __exceptionC = PointerByReference()
	CAPI.Beyond_NET_Sample_Source_OutParameterTests_Return_StringArray_NotNull(this.__handle, __returnValuesJNAByRef, __exceptionC)
	val __exceptionCHandle = __exceptionC.value
	if (__exceptionCHandle != null) {
		throw System_Exception(__exceptionCHandle).toKException()
	}
	
	returnValues.value = DNArray<System_String>(System_String, __returnValuesJNAByRef.value)
}
open fun return_StringArray_Optional(returnValues: ObjectRef<DNNullableArray<System_String>?> /* System.String[] */) {
	val __returnValuesJNAByRef = returnValues.toJNARef()
	val __exceptionC = PointerByReference()
	CAPI.Beyond_NET_Sample_Source_OutParameterTests_Return_StringArray_Optional(this.__handle, __returnValuesJNAByRef, __exceptionC)
	val __exceptionCHandle = __exceptionC.value
	if (__exceptionCHandle != null) {
		throw System_Exception(__exceptionCHandle).toKException()
	}
	
	returnValues.value = if (__returnValuesJNAByRef.value != null) DNArray<System_String>(System_String, __returnValuesJNAByRef.value) else null
}

This leads to compilation failures similar to:

Generated_Kotlin.kt:179541:24 Assignment type mismatch: actual type is 'DNArray<System_String>', but 'DNNullableArray<System_String>' was expected.
Generated_Kotlin.kt:179560:24 Assignment type mismatch: actual type is 'DNArray<System_String>?', but 'DNNullableArray<System_String>?' was expected.