Change the field and constructor parameter types of NoSuchMethodError to Symbol.

sdk/lib/collection/hash_map.dart

Index: sdk/lib/collection/hash_map.dart
diff --git a/sdk/lib/collection/hash_map.dart b/sdk/lib/collection/hash_map.dart
index e2f22a67b4f40427565994ad68e1d865f6bf4a1e..a0624e005a9ebd018444621d8229ee6840053006 100644
--- a/sdk/lib/collection/hash_map.dart
+++ b/sdk/lib/collection/hash_map.dart
@@ -38,7 +38,7 @@ class HashMap<K, V> implements Map<K, V> {
    * If no values are specified for [key] and [value] the default is the
    * identity function.
    */
-  factory HashMap.fromIterable(Iterable<K> iterable,
+  factory HashMap.fromIterable(Iterable iterable,
       {K key(element), V value(element)}) {
     HashMap<K, V> map = new HashMap<K, V>();
     Maps._fillMapWithMappedIterable(map, iterable, key, value);