chore: upgrade to typescript-eslint 8 (#11828)

Author: benmccann

package.json

@@ -39,7 +39,7 @@
     "prettier": "^3.2.4",
     "prettier-plugin-svelte": "^3.1.2",
     "typescript": "^5.3.3",
-    "typescript-eslint": "^7.6.0",
+    "typescript-eslint": "^8.0.0-alpha.20",
     "vitest": "^1.2.1"
   },
   "pnpm": {

packages/svelte/src/compiler/phases/1-parse/state/element.js

@@ -271,7 +271,6 @@ export default function tag(parser) {
 		const chunk = definition.value[0];
 
 		if (definition.value.length !== 1 || chunk.type !== 'ExpressionTag') {
-			chunk.type;
 			w.svelte_element_invalid_this(definition);
 
 			// note that this is wrong, in the case of e.g. `this="h{n}"` — it will result in `<h>`.