Fix const reassignment error in standalone build

Inline `isNode` into `hasOrIsNode` to prevent terser from creating
problematic const reassignment when building standalone bundle.

Fixes #1109

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: charlespwd

packages/prettier-plugin-liquid/src/printer/printer-liquid-html.ts

@@ -632,9 +632,6 @@ function hasOrIsNode<N extends LiquidHtmlNode, K extends keyof N>(node: N, key:
   const v = node[key];
   // this works because there's no ()[] type that is string | Node, it only
   // happens for singular nodes such as name: string | LiquidDrop, etc.
-  return Array.isArray(v) || isNode(v);
-}
-
-function isNode(x: unknown): x is LiquidHtmlNode {
-  return x !== null && typeof x === 'object' && 'type' in x && typeof x.type === 'string';
+  // Note: isNode logic inlined to avoid terser const reassignment in standalone build
+  return Array.isArray(v) || (v !== null && typeof v === 'object' && 'type' in v && typeof v.type === 'string');
 }