Add test where different specifier than whats in the file is resolved to find the source

Author: sheetalkamat

tests/baselines/reference/goToSource16_callbackParamDifferentFile.baseline.jsonc

@@ -0,0 +1,20 @@
+// === goToSourceDefinition ===
+// === /node_modules/yargs/callback.js ===
+// export class Yargs { [|positional|]() { } }
+
+// === /index.ts ===
+// import { command } from "yargs";
+// command("foo", yargs => {
+//     yargs./*GOTO SOURCE DEF*/positional();
+// });
+
+  // === Details ===
+  [
+   {
+    "containerKind": "",
+    "containerName": "",
+    "kind": "",
+    "name": "",
+    "unverified": true
+   }
+  ]

tests/cases/fourslash/server/goToSource16_callbackParamDifferentFile.ts

@@ -0,0 +1,41 @@
+/// <reference path="../fourslash.ts" />
+
+// @moduleResolution: node
+
+// This is just modified repro to ensure we are resolving module specifier thats not already present in the file
+
+// @Filename: /node_modules/@types/yargs/package.json
+//// {
+////     "name": "@types/yargs",
+////     "version": "1.0.0",
+////     "types": "./index.d.ts"
+//// }
+
+// @Filename: /node_modules/@types/yargs/callback.d.ts
+//// export declare class Yargs { positional(): Yargs; }
+
+// @Filename: /node_modules/@types/yargs/index.d.ts
+//// import { Yargs } from "./callback";
+//// export declare function command(command: string, cb: (yargs: Yargs) => void): void;
+
+// @Filename: /node_modules/yargs/package.json
+//// {
+////     "name": "yargs",
+////     "version": "1.0.0",
+////     "main": "index.js"
+//// }
+
+// @Filename: /node_modules/yargs/callback.js
+//// export class Yargs { positional() { } }
+
+// @Filename: /node_modules/yargs/index.js
+//// import { Yargs } from "./callback";
+//// export function command(cmd, cb) { cb(Yargs) }
+
+// @Filename: /index.ts
+//// import { command } from "yargs";
+//// command("foo", yargs => {
+////     yargs.[|/*start*/positional|]();
+//// });
+
+verify.baselineGoToSourceDefinition("start");