couple of fixes

src/parse/state/tag.ts

@@ -232,7 +232,8 @@ export default function tag(parser: Parser) {
 		const special = specials.get(name);
 
 		parser.eat('>', true);
-		parser[special.property].push(special.read(parser, start, element.attributes));
+		const content = special.read(parser, start, element.attributes);
+		if (content) parser[special.property].push(content);
 		return;
 	}
 

test/js/samples/bind-width-height/expected.js

@@ -47,6 +47,11 @@ function define($$self, $$props, $$make_dirty) {
 	}
 
 	$$self.$$.get = () => ({ w, h, div_resize_handler });
+
+	$$self.$$.set = $$props => {
+		if ('w' in $$props) w = $$props.w;
+		if ('h' in $$props) h = $$props.h;
+	};
 }
 
 class SvelteComponent extends SvelteComponent_1 {

test/js/samples/media-bindings/expected.js

@@ -58,7 +58,6 @@ function create_fragment(component, ctx) {
 }
 
 function define($$self, $$props, $$make_dirty) {
-	// TODO some of these are read-only...
 	let { buffered, seekable, played, currentTime, duration, paused, volume } = $$props;
 
 	function audio_timeupdate_handler() {

test/parser/samples/script-comment-only/output.json

@@ -21,7 +21,5 @@
 		]
 	},
 	"css": [],
-	"js": [
-		null
-	]
+	"js": []
 }