Fix wrong script info used to resolve line/offset for call hierarchy items (#36559)

tests/cases/fourslash/callHierarchyCrossFile.ts

@@ -0,0 +1,19 @@
+/// <reference path="fourslash.ts" />
+
+// @filename: /a.ts
+////export function /**/createModelReference() {}
+
+// @filename: /b.ts
+////import { createModelReference } from "./a";
+////function openElementsAtEditor() {
+////  createModelReference();
+////}
+
+// @filename: /c.ts
+////import { createModelReference } from "./a";
+////function registerDefaultLanguageCommand() {
+////  createModelReference();
+////}
+
+goTo.marker();
+verify.baselineCallHierarchy();