fix(eslint-plugin): normalize whitespace in allowList variable matching for multiline expressions (#10337)

* fix(eslint-plugin): normalize whitespace in allowList variable matching

When a member expression spans multiple lines (e.g. `ignored\n    .run()`),
`sourceCode.getText()` preserves the newline. The root segment extracted
by splitting on `.'` then becomes `'ignored\n    '`, which never matches
the allowlisted variable name `'ignored'`.

Fix: extend `normalizeChain` to also collapse all whitespace, so
multi-line chains produce the same identifier path as single-line ones.

Fixes #10334

* changeset

---------

Co-authored-by: Maks Pikov <mixelburg@users.noreply.github.com>
Co-authored-by: Dominik Dorfmeister 🔮 <office@dorfmeister.cc>

Author: mixelburg

.changeset/violet-dogs-tease.md

@@ -0,0 +1,5 @@
+---
+'@tanstack/eslint-plugin-query': patch
+---
+
+fix(eslint-plugin): normalize whitespace in allowList variable matching for multiline expressions

packages/eslint-plugin-query/src/__tests__/exhaustive-deps.test.ts

@@ -2160,6 +2160,20 @@ ruleTester.run('exhaustive-deps allowlist.variables', rule, {
         }
       `,
     },
+    {
+      name: 'should ignore allowlisted variable when member access spans multiple lines',
+      options: [{ allowlist: { variables: ['ignored'] } }],
+      code: normalizeIndent`
+        function useThing() {
+          const ignored = { run: () => Promise.resolve() }
+          return useQuery({
+            queryKey: ['thing'],
+            queryFn: () => ignored
+              .run()
+          })
+        }
+      `,
+    },
   ],
   invalid: [
     {

packages/eslint-plugin-query/src/rules/exhaustive-deps/exhaustive-deps.utils.ts

@@ -282,7 +282,7 @@ export const ExhaustiveDepsUtils = {
    * Example: `a?.b.c!` -> `a.b.c`
    */
   normalizeChain(text: string): string {
-    return text.replace(/(?:\?(\.)|!)/g, '$1')
+    return text.replace(/(?:\?(\.)|!)/g, '$1').replace(/\s+/g, '')
   },
 
   /**