removeUnusedImport check fails when there are pattern matching switch expressions with inner classes

I have the following switch expression
```java
result = switch (literal) {
case Literal.Integer(int value, int ignored) -> value;
case Literal.Long(long value, int ignored) -> value;
case Literal.Float(float value) -> value;
case Literal.Double(double value) -> value;
case Literal.Character(char value) -> value;
case Literal.String(String value) -> value;
};
```

and it causes the `removeUnusedImport` rule to fail with the following message:
```
src/main/java/daomephsta/unpick/impl/constantmappers/datadriven/ExpressionEvaluator.java:L142 removeUnusedImports(removeUnusedImports) error: '.class' expected
```

[full code](https://github.com/FabricMC/unpick/blob/5523cc9d5dceecf929df4db9888eead201ddb8ce/src/main/java/daomephsta/unpick/impl/constantmappers/datadriven/ExpressionEvaluator.java#L141)

Comienza reproduciendo el fallo de la expresión switch en src/main/java/daomephsta/unpick/impl/constantmappers/datadriven/ExpressionEvaluator.java, centrándote en la comprobación removeUnusedImport y en el error indicado en la línea 142. Sigue cómo se analiza este switch con pattern matching y verifica que la comprobación se completa sin el error «se esperaba '.class'».

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