Remove regenerator finished generator error

test/_generator-helpers.js

@@ -20,14 +20,6 @@ exports.raise = function raise(argument) {
 };
 
 exports.assertAlreadyFinished = function assertAlreadyFinished(generator) {
-  try {
-    generator.next();
-    assert.ok(false, "should have thrown an exception");
-  } catch (err) {
-    assert.ok(err instanceof Error);
-    assert.strictEqual(
-      err.message,
-      "Generator has already finished"
-    );
-  }
+  var item = generator.next();
+  assert.ok(item.done && item.value === undefined, "not finished");
 };

test/fixtures/transformation/es6-generators/function-declaration-hoisting-should-work-even-if-the-declarations-are-out-of-order/exec.js

@@ -15,18 +15,10 @@ function *gen(n) {
     function decrement(x) {
       return x - 1;
     }
-  } else {
-    // The behavior of function declarations nested inside conditional
-    // blocks is notoriously underspecified, and in V8 it appears the
-    // halve function is still defined when we take this branch, so
-    // "undefine" it for consistency with regenerator semantics.
-    halve = void 0;
   }
 
-  yield typeof halve;
-
   yield increment(increment(n));
 }
 
-genHelpers.check(gen(3), [4, 1, "function", 5]);
-genHelpers.check(gen(4), [5, "undefined", 6]);
+genHelpers.check(gen(3), [4, 1, 5]);
+genHelpers.check(gen(4), [5, 6]);