NullVal constructor
- String? valueAsString,
Implementation
NullVal({
this.valueAsString,
}) : super(
id: 'instance/null',
identityHashCode: 0,
kind: InstanceKind.kNull,
classRef: ClassRef(
id: 'class/null',
library: LibraryRef(
id: '',
name: 'dart:core',
uri: 'dart:core',
),
name: 'Null',
),
);