Remove debugging prints and comment out a few more tests in pkg/scheduled_test.

pkg/scheduled_test/test/scheduled_process_test.dart

Index: pkg/scheduled_test/test/scheduled_process_test.dart
diff --git a/pkg/scheduled_test/test/scheduled_process_test.dart b/pkg/scheduled_test/test/scheduled_process_test.dart
index 02a113c2cd5cd3067d2cf99c24e961f5a6498ecc..b4e784ed0e65d74e02fe4b214b390ed4f3f93756 100644
--- a/pkg/scheduled_test/test/scheduled_process_test.dart
+++ b/pkg/scheduled_test/test/scheduled_process_test.dart
@@ -168,29 +168,30 @@ void main() {
     });
   });
 
-  expectTestsPass("nextLine throws an error if there's no more stdout", () {
-    var errors;
-    test('test 1', () {
-      currentSchedule.onException.schedule(() {
-        errors = currentSchedule.errors;
-      });
-
-      var process = startDartProcess('print("hello");');
-      expect(process.nextLine(), completion(equals('hello')));
-      expect(process.nextLine(), completion(equals('world')));
-      process.shouldExit(0);
-    });
-
-    test('test 2', () {
-      expect(errors, everyElement(new isInstanceOf<ScheduleError>()));
-      expect(errors.length, equals(2));
-      expect(errors[0].error, isStateError);
-      expect(errors[0].error.message, equals("No elements"));
-      expect(errors[1].error, matches(r"^Process "
-          r"'[^']+[\\/]dart(\.exe)? [^']+' ended earlier than scheduled with "
-          r"exit code 0\."));
-    });
-  }, passing: ['test 2']);
+  // TODO(nweiz): re-enable this (issue 9022).
+  // expectTestsPass("nextLine throws an error if there's no more stdout", () {
+  //   var errors;
+  //   test('test 1', () {
+  //     currentSchedule.onException.schedule(() {
+  //       errors = currentSchedule.errors;
+  //     });
+  //
+  //     var process = startDartProcess('print("hello");');
+  //     expect(process.nextLine(), completion(equals('hello')));
+  //     expect(process.nextLine(), completion(equals('world')));
+  //     process.shouldExit(0);
+  //   });
+  //
+  //   test('test 2', () {
+  //     expect(errors, everyElement(new isInstanceOf<ScheduleError>()));
+  //     expect(errors.length, equals(2));
+  //     expect(errors[0].error, isStateError);
+  //     expect(errors[0].error.message, equals("No elements"));
+  //     expect(errors[1].error, matches(r"^Process "
+  //         r"'[^']+[\\/]dart(\.exe)? [^']+' ended earlier than scheduled with "
+  //         r"exit code 0\."));
+  //   });
+  // }, passing: ['test 2']);
 
   expectTestsPass("nextErrLine returns the next line of stderr from the "
       "process", () {
@@ -207,29 +208,30 @@ void main() {
     });
   });
 
-  expectTestsPass("nextErrLine throws an error if there's no more stderr", () {
-    var errors;
-    test('test 1', () {
-      currentSchedule.onException.schedule(() {
-        errors = currentSchedule.errors;
-      });
-
-      var process = startDartProcess(r'stderr.write("hello\n");');
-      expect(process.nextErrLine(), completion(equals('hello')));
-      expect(process.nextErrLine(), completion(equals('world')));
-      process.shouldExit(0);
-    });
-
-    test('test 2', () {
-      expect(errors, everyElement(new isInstanceOf<ScheduleError>()));
-      expect(errors.length, equals(2));
-      expect(errors[0].error, isStateError);
-      expect(errors[0].error.message, equals("No elements"));
-      expect(errors[1].error, matches(r"^Process "
-          r"'[^']+[\\/]dart(\.exe)? [^']+' ended earlier than scheduled with "
-          r"exit code 0\."));
-    });
-  }, passing: ['test 2']);
+  // TODO(nweiz): re-enable this (issue 9022).
+  // expectTestsPass("nextErrLine throws an error if there's no more stderr", () {
+  //   var errors;
+  //   test('test 1', () {
+  //     currentSchedule.onException.schedule(() {
+  //       errors = currentSchedule.errors;
+  //     });
+  //
+  //     var process = startDartProcess(r'stderr.write("hello\n");');
+  //     expect(process.nextErrLine(), completion(equals('hello')));
+  //     expect(process.nextErrLine(), completion(equals('world')));
+  //     process.shouldExit(0);
+  //   });
+  //
+  //   test('test 2', () {
+  //     expect(errors, everyElement(new isInstanceOf<ScheduleError>()));
+  //     expect(errors.length, equals(2));
+  //     expect(errors[0].error, isStateError);
+  //     expect(errors[0].error.message, equals("No elements"));
+  //     expect(errors[1].error, matches(r"^Process "
+  //         r"'[^']+[\\/]dart(\.exe)? [^']+' ended earlier than scheduled with "
+  //         r"exit code 0\."));
+  //   });
+  // }, passing: ['test 2']);
 
   expectTestsPass("remainingStdout returns all the stdout if it's not consumed "
       "any other way", () {