Function child2Function

test/internal/deep-types.js:43–45

(child2FunctionArgument1)

    return child2Function(child1FunctionArgument1);
  }
  function child2Function(child2FunctionArgument1) {
    return child2FunctionArgument1 + 1;
  }
  gpu
    .addFunction(child1Function)
    .addFunction(child2Function);