Support unreachable code in blocks in analyzer2dart.

pkg/analyzer2dart/test/end2end_test.dart

Index: pkg/analyzer2dart/test/end2end_test.dart
diff --git a/pkg/analyzer2dart/test/end2end_test.dart b/pkg/analyzer2dart/test/end2end_test.dart
index 8bdbfffaa2e3b25770a38453e02c4a22054ecc39..64f83a0d4ef566ce1643ca37e3f2ce73345cc0a9 100644
--- a/pkg/analyzer2dart/test/end2end_test.dart
+++ b/pkg/analyzer2dart/test/end2end_test.dart
@@ -486,7 +486,7 @@ main(a) {
 ''');
   });
 
-  test('If statement', () {
+  test('Conditional expression', () {
     checkResult('''
 main(a) {
   return a ? print(0) : print(1);
@@ -497,6 +497,59 @@ main(a) {
 }
 ''');
   });
+

[sigurdm, 2014/10/21 08:22:44]

Maybe it would be beneficial to add a comment to each test stating what it is
testing.

[Johnni Winther, 2014/10/23 06:55:12]

Done.

+  test('Block statements', () {
+    checkResult('''
+main(a) {
+  return 0;
+  return 1;
+}
+''', '''
+main(a) {
+  return 0;
+}
+''');
+
+    checkResult('''
+main(a) {
+  if (a) {
+    return 0;
+    return 1;
+  } else {
+    return 2;
+    return 3;
+  }
+}
+''', '''
+main(a) {
+  return a ? 0 : 2;
+}
+''');
+
+    checkResult('''
+main(a) {
+  if (a) {
+    print(0);
+    return 0;
+    return 1;
+  } else {
+    print(2);
+    return 2;
+    return 3;
+  }
+}
+''', '''
+main(a) {
+  if (a) {
+    print(0);
+    return 0;
+  } else {
+    print(2);
+    return 2;
+  }
+}
+''');
+  });
 }
 
 checkResult(String input, [String expectedOutput]) {