failing test for #3343

test/js/samples/innerhtml-interpolated-constant/expected.js

@@ -0,0 +1,46 @@
+/* generated by Svelte vX.Y.Z */
+import {
+	SvelteComponent,
+	detach,
+	element,
+	init,
+	insert,
+	noop,
+	safe_not_equal
+} from "svelte/internal";
+
+function create_fragment(ctx) {
+	var div;
+
+	return {
+		c() {
+			div = element("div");
+			div.innerHTML = `<span class="a/${answer}"></span>`;
+		},
+
+		m(target, anchor) {
+			insert(target, div, anchor);
+		},
+
+		p: noop,
+		i: noop,
+		o: noop,
+
+		d(detaching) {
+			if (detaching) {
+				detach(div);
+			}
+		}
+	};
+}
+
+const answer = 42;
+
+class Component extends SvelteComponent {
+	constructor(options) {
+		super();
+		init(this, options, null, create_fragment, safe_not_equal, []);
+	}
+}
+
+export default Component;

test/js/samples/innerhtml-interpolated-constant/input.svelte

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+<script>
+	const answer = 42;
+</script>
+
+<div>
+	<span class="a/{answer}"/>
+</div>