addModifiers method in FieldSpec and TypeSpec accepting Iterable

[homedirectory]

Currently FieldSpec and TypeSpec both have addModifiers method that accepts a variable number of arguments of type Modifier:

public Builder addModifiers(Modifier... modifiers) {
    Collections.addAll(this.modifiers, modifiers);
    return this;
}

In contrast, MethodSpec has an additional convenient signature for this method that accepts a Iterable type:

public Builder addModifiers(Iterable<Modifier> modifiers) {
    checkNotNull(modifiers, "modifiers == null");
    for (Modifier modifier : modifiers) {
        this.modifiers.add(modifier);
    }
    return this;
}

I think it is appropriate to enhance FieldSpec and TypeSpec to also have such method signature.