@Override
  @SuppressWarnings("unchecked")
  public void visitArrayExpression(ArrayExpression expr) {
    ArrayExpression conversion =
        new ArrayExpression(
            expr.getElementType(),
            convertAll(expr.getExpressions()),
            expr.getSizeExpression() == null ? null : convertAll(expr.getSizeExpression()));

    conversion.setSourcePosition(expr);
    result = record(conversion);
  }
Rewrites explicit ("assert x > 3") and implicit ("x > 3") condition
statements. Replacing the original statement with the rewritten one is up
to clients.

@author Peter Niederwieser
spock-core/src/main/java/org/spockframework/compiler/ConditionRewriter.java