Function luaAliasOf

src/resolution/name-matcher.ts:1600–1603

* What a Lua alias variable names: a project function (or the module's own * global), null for the standard library or an outside module, `undefined` * for an initializer that is not an alias.

(decl: Node, context: ResolutionContext, depth: number)

 * for an initializer that is not an alias.
 */
function luaAliasOf(decl: Node, context: ResolutionContext, depth: number): Node | null | undefined {
  const rhs = decl.signature!.replace(/^\s*=\s*/, '').trim();
  return luaAliasExpr(rhs, { file: decl.filePath, line: decl.startLine, name: decl.name, node: decl }, context, depth);
}

const luaMembers = (chain: string): string[] => chain.split('.').map((s) => s.trim()).filter(Boolean);