Update all Angular libs (run update_all.sh).

third_party/pkg/angular/lib/formatter/currency.dart

-part of angular.filter;
+part of angular.formatter_internal;
 
 /**
  * Formats a number as a currency (ie $1,234.56). When no currency symbol is
  * provided, '$' used.
  *
  *
  * Usage:
  *
  *     {{ numeric_expression | currency[:symbol[:leading]] }}
  *
  */
-@NgFilter(name:'currency')
-class CurrencyFilter {
-  NumberFormat nf = new NumberFormat();
+@Formatter(name:'currency')
+class Currency implements Function {
 
-  CurrencyFilter() {
-    nf.minimumFractionDigits = 2;
-    nf.maximumFractionDigits = 2;
-  }
+  var _nfs = new Map<String, NumberFormat>();
 
   /**
    *  [value]: the value to format
    *
    *  [symbol]: Symbol to use.
    *
    *  [leading]: Symbol should be placed in front of the number
    */
   call(value, [symbol = r'$', leading = true]) {
     if (value is String) value = double.parse(value);
     if (value is! num) return value;
     if (value.isNaN) return '';
+    var verifiedLocale = Intl.verifiedLocale(Intl.getCurrentLocale(), NumberFormat.localeExists);
+    var nf = _nfs[verifiedLocale];
+    if (nf == null) {
+      nf = new NumberFormat();
+      nf.minimumFractionDigits = 2;
+      nf.maximumFractionDigits = 2;
+      _nfs[verifiedLocale] = nf;
+    }
     var neg = value < 0;
     if (neg) value = -value;
     var before = neg ? '(' : '';
     var after = neg ? ')' : '';
     return leading ?
         '$before$symbol${nf.format(value)}$after' :
         '$before${nf.format(value)}$symbol$after';
   }
 }