chore: remove get_callee_name (#9595)

no longer necessary with the enhanced get_rune function

Author: Rich-Harris

packages/svelte/src/compiler/phases/2-analyze/index.js

@@ -5,7 +5,6 @@ import * as assert from '../../utils/assert.js';
 import {
 	extract_identifiers,
 	extract_paths,
-	get_callee_name,
 	is_event_attribute,
 	is_text_attribute,
 	object
@@ -268,11 +267,7 @@ export function analyze_component(root, options) {
 			!Runes.includes(name) ||
 			(declaration !== null &&
 				// const state = $state(0) is valid
-				!Runes.includes(
-					/** @type {string} */ (
-						get_callee_name(/** @type {import('estree').Expression} */ (declaration.initial))
-					)
-				) &&
+				get_rune(declaration.initial, instance.scope) === null &&
 				// allow `import { derived } from 'svelte/store'` in the same file as `const x = $derived(..)` because one is not a subscription to the other
 				!(
 					name === '$derived' &&

packages/svelte/src/compiler/phases/scope.js

@@ -3,11 +3,7 @@ import { walk } from 'zimmerframe';
 import { is_element_node } from './nodes.js';
 import * as b from '../utils/builders.js';
 import { error } from '../errors.js';
-import {
-	extract_identifiers,
-	extract_identifiers_from_expression,
-	get_callee_name
-} from '../utils/ast.js';
+import { extract_identifiers, extract_identifiers_from_expression } from '../utils/ast.js';
 import { Runes } from './constants.js';
 
 export class Scope {

packages/svelte/src/compiler/utils/ast.js

@@ -20,19 +20,6 @@ export function object(expression) {
 	return expression;
 }
 
-/**
- * Returns the name of callee if the given expression is a call expression.
- * @param {import('estree').Expression | null | undefined} node
- */
-export function get_callee_name(node) {
-	if (!node) return null;
-	if (node.type !== 'CallExpression') return null;
-	if (node.callee.type !== 'Identifier' && node.callee.type !== 'MemberExpression') return null;
-
-	const id = object(node.callee);
-	return id === null ? null : id.name;
-}
-
 /**
  * Returns true if the attribute contains a single static text node.
  * @param {import('#compiler').Attribute} attribute