Dart SDK Spelling b, c, and d.

pkg/compiler/README.md

 # The dart2js compiler
 
 Welcome to the sources of the dart2js compiler!
 
 ## Architecture
 
 The compiler is currently undergoing a long refactoring process. As you navigate
 this code you may find it helpful to understand how the compiler used to be,
 where it is going, and where it is today.
 
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 * `lib/src/closure.dart`: closures are compiled as classes, this file has the
   logic to do this kind of conversion in the Dart element model. This includes
   computing what needs to be boxed and creating fake element models to represent
   closures as classes. We use the fake model approach because the compiler
   currently uses the same element model for Dart and JS. Our goal with the
   compiler rearchitecture described earlier is to have two models. The
   Dart model will be able to encode closures directly, and we'll introduce their
   corresponding classes when we create the corresponding JS model, removing the
   need of the fake elements.
 
-* `lib/src/colors.dart`: ANSII support for reporting error messages with colors.
+* `lib/src/colors.dart`: ANSI support for reporting error messages with colors.
 
   AI: this file should move under a utilities folder.
 
 
 * Handling of options: as mentioned earlier `lib/src/dart2js.dart` has some
   handling of command-line options, the rest is divided into these files:
 
   * `lib/src/commandline_options.dart`: defines the flags that dart2js accepts.
 
   * `lib/src/options.dart`: defines first-class objects to represent options of
@@ skipping 490 matching lines @@
 `lib/src/types/forwarding_type_mask.dart`
 `lib/src/types/container_type_mask.dart`
 `lib/src/types/constants.dart`
 `lib/src/types/flat_type_mask.dart`
 `lib/src/types/masks.dart`
 `lib/src/types/value_type_mask.dart`
 `lib/src/types/union_type_mask.dart`
 
 `lib/src/hash`
 `lib/src/hash/sha1.dart`