JS: Test case with rootDir

Author: asgerf

javascript/ql/test/library-tests/PathResolution/RootDir/my-root/foo.ts

@@ -0,0 +1 @@
+export const x = 1;

javascript/ql/test/library-tests/PathResolution/RootDir/tsconfig.json

@@ -0,0 +1,7 @@
+{
+    "include": ["my-root","my-tests"],
+    "compilerOptions": {
+        "rootDir": "./my-root",
+        "outDir": "./my-out",
+    }
+}

javascript/ql/test/library-tests/PathResolution/import-packages.ts

@@ -31,3 +31,5 @@ import '@example/main-is-folder'; // $ importTarget=MainIsFolder/src/index.ts
 import './DistContainsSrc'; // $ importTarget=DistContainsSrc/src/foo.ts
 
 import './MinifiedMain'; // $ importTarget=MinifiedMain/src/library.ts
+
+import './RootDir/my-out/foo.js'; // $ importTarget=RootDir/my-root/foo.ts

javascript/ql/test/library-tests/PathResolution/test.expected

@@ -137,4 +137,5 @@ importTarget
 | import-packages.ts:29:1:29:33 | import  ... older'; | MainIsFolder/src/index.ts |
 | import-packages.ts:31:1:31:27 | import  ... nsSrc'; | DistContainsSrc/src/foo.ts |
 | import-packages.ts:33:1:33:24 | import  ... dMain'; | MinifiedMain/src/library.ts |
+| import-packages.ts:35:1:35:33 | import  ... oo.js'; | RootDir/my-root/foo.ts |
 testFailures