Format all dart: library files

sdk/lib/core/num.dart

Index: sdk/lib/core/num.dart
diff --git a/sdk/lib/core/num.dart b/sdk/lib/core/num.dart
index 15b892d9c382ca0e3775c8342383277e1659f902..1db2508433c61630cbf15a8fd990cfa702a1b6d0 100644
--- a/sdk/lib/core/num.dart
+++ b/sdk/lib/core/num.dart
@@ -42,7 +42,7 @@ abstract class num implements Comparable<num> {
    * Use [compareTo] for a comparison that distinguishes zero and minus zero,
    * and that considers NaN values as equal.
    */
-  bool operator==(Object other);
+  bool operator ==(Object other);
 
   /**
    * Returns a hash code for a numerical value.
@@ -146,7 +146,7 @@ abstract class num implements Comparable<num> {
   /** Negate operator. */
   num operator -();
 
- /**
+  /**
    * Returns the remainder of the truncating division of `this` by [other].
    *
    * The result `r` of this operation satisfies: