Replace nested ifs with one if and conditions joined with &&

[greg-at-moderne]

What problem are you trying to solve?

Simplify code.

Describe the situation before applying the recipe

    class A {
        void foo(boolean a, boolean b) {
            if (a) {
                if (b) {
                }
            }
        }
    }

Describe the situation after applying the recipe

    class A {
        void foo(boolean a, boolean b) {
            if (a && b) {
            }
        }
    }

Things to take into account

• parenthesis might or might not be needed
• only applicable if there's no other logic in the outer if

[github-actions[bot]]

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