strip comments

src/compiler/compile/nodes/EachBlock.ts

@@ -63,7 +63,7 @@ export default class EachBlock extends AbstractBlock {
 		([this.const_tags, this.children] = get_const_tags(info.children, component, this, this));
 
 		if (this.has_animation) {
-			this.children = this.children.filter(child => !isEmptyNode(child));
+			this.children = this.children.filter(child => !(child.type == 'Comment' || isEmptyNode(child)));
 
 			if (this.children.length !== 1) {
 				const child = this.children.find(child => !!(child as Element).animation);