So spells that say make a melee attack, use melee or spell attack modifiers?

@JeremyECrawford spells that say make a melee attack, use melee or spell attack modifiers? E.g. Booming blade from sword coast adv guide.

— Jason (@jasonhobson) April 11, 2016

If something in the game tells you to make a melee attack with a weapon, follow the normal rules for doing so. #DnD https://t.co/ilQ2S1XF6R

— Jeremy Crawford (@JeremyECrawford) April 11, 2016