New Rule Suggestion / Rule amendment - in response to #903

In Issue #903 the rule in my opinion correctly throws on a += for simple defined arrays using the $var = @() method of defining an array to the var variable

I would suggest that a new rule is created that correctly identifies this method as being an expensive action and that a recommendation to use a fully defined Array collection would be a better suggestion, initially suggesting using a System.Collections.ArrayList

This rule should look for both @() & += and suggest converting these calls better scripting practices

Comienza leyendo el issue #903 y la regla existente que gestiona += para arrays. Determina cómo debería reconocer el analizador tanto @() como += y, a continuación, define la recomendación y las pruebas necesarias para confirmar que se sugieran colecciones completamente definidas, inicialmente System.Collections.ArrayList.