Dart SDK Spelling b, c, and d.

pkg/dev_compiler/tool/input_sdk/private/foreign_helper.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // 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.
 
 library dart._foreign_helper;
 
 /**
  * Emits a JavaScript code fragment parameterized by arguments.
  *
  * Hash characters `#` in the [codeTemplate] are replaced in left-to-right order
@@ skipping 17 matching lines @@
  * The [typeDescription] is a [String] which contains a union of types separated
  * by vertical bar `|` symbols, e.g.  `"num|String"` describes the union of
  * numbers and Strings.  There is no type in Dart that is this precise.  The
  * Dart alternative would be `Object` or `dynamic`, but these types imply that
  * the JS-code might also be creating instances of all the DOM types.  If `null`
  * is possible, it must be specified explicitly, e.g. `"String|Null"`.
  * [typeDescription] has several extensions to help describe the behavior more
  * accurately.  In addition to the union type already described:
  *
  *  + `=Object` is a plain JavaScript object.  Some DOM methods return instances
- *     that have no corresponing Dart type (e.g. cross-frame documents),
+ *     that have no corresponding Dart type (e.g. cross-frame documents),
  *     `=Object` can be used to describe these untyped' values.
  *
  *  + `var` (or empty string).  If the entire [typeDescription] is `var` (or
  *    empty string) then the type is `dynamic` but the code is known to not
  *    create any instances.
  *
  * Examples:
  *
  *     // Parent window might be an opaque cross-frame window.
  *     var thing = JS('=Object|Window', '#.parent', myWindow);
@@ skipping 253 matching lines @@
 class _Rest {
   const _Rest();
 }
 
 const _Rest rest = const _Rest();
 
 dynamic spread(args) {
   throw new StateError('The spread function cannot be called, '
       'it should be compiled away.');
 }