Dart SDK Spelling b, c, and d.

tests/language/vm/if_conversion_vm_test.dart

Index: tests/language/vm/if_conversion_vm_test.dart
diff --git a/tests/language/vm/if_conversion_vm_test.dart b/tests/language/vm/if_conversion_vm_test.dart
index 8fbcc3bccce4dc227ea5b721b53430a2e7cff5be..bea37afdc651dbab5d95ad7aaa2d13c0823d7bec 100644
--- a/tests/language/vm/if_conversion_vm_test.dart
+++ b/tests/language/vm/if_conversion_vm_test.dart
@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// Test if-convertion pass in the optimizing compiler.
+// Test if-conversion pass in the optimizing compiler.
 // VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
 
 import "package:expect/expect.dart";