Format all files under the sdk/lib directory.

sdk/lib/collection/set.dart

Index: sdk/lib/collection/set.dart
diff --git a/sdk/lib/collection/set.dart b/sdk/lib/collection/set.dart
index 7776655f3e5c0ef42777b6b170e2b986b1902027..5aaa0a3577a412c2140d340591f2bc41c6efbb52 100644
--- a/sdk/lib/collection/set.dart
+++ b/sdk/lib/collection/set.dart
@@ -120,8 +120,8 @@ abstract class SetMixin<E> implements Set<E> {
     return result;
   }
 
-  Iterable<T> map<T>(T f(E element)) => new EfficientLengthMappedIterable<E, T>(
-      this, f);
+  Iterable<T> map<T>(T f(E element)) =>
+      new EfficientLengthMappedIterable<E, T>(this, f);
 
   E get single {
     if (length > 1) throw IterableElementError.tooMany();
@@ -138,8 +138,8 @@ abstract class SetMixin<E> implements Set<E> {
 
   Iterable<E> where(bool f(E element)) => new WhereIterable<E>(this, f);
 
-  Iterable<T>
-      expand<T>(Iterable<T> f(E element)) => new ExpandIterable<E, T>(this, f);
+  Iterable<T> expand<T>(Iterable<T> f(E element)) =>
+      new ExpandIterable<E, T>(this, f);
 
   void forEach(void f(E element)) {
     for (E element in this) f(element);