fix component boolean attributes

compiler/generate/visitors/attributes/addComponentAttributes.js

@@ -9,7 +9,7 @@ export default function addComponentAttributes ( generator, node, local ) {
 		if ( attribute.type === 'Attribute' ) {
 			if ( attribute.value === true ) {
 				// attributes without values, e.g. <textarea readonly>
-				local.data.push( `${attribute.name}: true` );
+				local.staticAttributes.push( `${attribute.name}: true` );
 			}
 
 			else if ( attribute.value.length === 1 ) {

test/compiler/component-data-static-boolean/Foo.html

@@ -0,0 +1 @@
+<p>x: {{x}} ({{typeof x}})</p>

test/compiler/component-data-static-boolean/_config.js

@@ -0,0 +1,3 @@
+export default {
+	html: `<p>x: true (boolean)</p>`
+};

test/compiler/component-data-static-boolean/main.html

@@ -0,0 +1,9 @@
+<Foo x/>
+
+<script>
+	import Foo from './Foo.html';
+
+	export default {
+		components: { Foo }
+	};
+</script>