Annotation Constructors: variable()

The annotation class for `variable()`.

- `Anything`
  - `Object`
    - `Basic` ...and other supertypes
      - `VariableAnnotation` ...and other supertypes

- `VariableAnnotation`
  - `Basic`
    - `Identifiable`
    - `Object`
      - `Anything`
  - `OptionalAnnotation`
    - `ConstrainedAnnotation`
      - `Annotation`

no subtypes hierarchy

Initializer
`VariableAnnotation()`

Inherited Attributes
Attributes inherited from: `Object` `Object.hash`, `Object.string`

Inherited Methods
Methods inherited from: `Object` `Object.equals()`
Methods inherited from: `ConstrainedAnnotation<Value,Values,ProgramElement>` `ConstrainedAnnotation.occurs()`