Bump tar from 6.1.13 to removed in /browser_library_test in the npm_and_yarn group across 1 directory

browser_library_test/generate.mjs

@@ -6,28 +6,28 @@ const generator = new Generator({
   mapUrl: './lib/build/',
   defaultProvider: 'nodemodules',
   env: ['production', 'browser', 'module'],
-  // Work around jspm/generator#259
-  commonJS: true,
 });
 
 await generator.install('./cli-pkg-test');
 
 const map = generator.getMap();
 
-// Add ./packages/cli_pkg_test/build/ so that URLs can be resolved in the URL
-// scheme generated by the test package.
-const prefix = './packages/cli_pkg_test/build/';
+// The @jspm/genearator resolves symlinks without a way to preserve them (unless
+// file URLs are used). We have to manually restore the paths for the dart
+// browser tests to work. This is a bit hacky, but it works for our use case. 
+const prefix = './packages/cli_pkg_test/build/cli-pkg-test/';
+const concretePathPrefix = '../../build/npm/';
 function addPrefixToValues(map) {
   for (const [key, value] of Object.entries(map)) {
-    map[key] = prefix + value;
+    map[key] = value.replace(concretePathPrefix, prefix);
   }
 }
 
 addPrefixToValues(map['imports']);
 
 for (const [scope, imports] of Object.entries(map['scopes'])) {
   delete map['scopes'][scope];
-  map['scopes'][prefix + scope] = imports;
+  map['scopes'][scope.replace(concretePathPrefix, prefix)] = imports;
   addPrefixToValues(imports);
 }