a.js

    it('variables in main child scope (like for loop) that conflict get renamed correctly ', function() {

        var combined = newComposedShader(
            newSubShader({
                fragment: `
                    void main() {
                        vec2 position = vec2( 1.0 );
                        for (int p = 0; p < 20; p++) {
                            vec2 other = position + p;
                        }
                        gl_FragColor = 1.0;
                    }
                `
            }),
            newSubShader({
                fragment: `
                    void main() {
                        vec2 position = vec2( 1.0 );
                        gl_FragColor = 1.0;
                    }
                `
            })
        );

        expect( combined.runtime.fragment.toString() ).not.to.contain( ' position + p' );

    });