JS: use tsconfig root dir in JSPaths

Author: asgerf

javascript/ql/lib/semmle/javascript/internal/paths/JSPaths.qll

@@ -43,15 +43,11 @@ module JSPaths {
     //
     //   { include: ["foo"], compilerOptions: { outDir: "./bar" }}
     //
-    exists(TSConfig tsconfig, Container includeTarget |
+    exists(TSConfig tsconfig |
       name =
         tsconfig.getCompilerOptions().getPropStringValue("outDir").regexpReplaceAll("^\\./", "") and
       base = tsconfig.getFolder() and
-      includeTarget = tsconfig.getAnIncludePathTarget()
-    |
-      result = includeTarget.(Folder)
-      or
-      result = includeTarget.(File).getParentContainer()
+      result = tsconfig.getEffectiveRootDir()
     )
     or
     // Heuristic version of the above based on commonly used source and build folder names