Revert "Update all Angular libs (run update_all.sh)."

third_party/pkg/angular/perf/try_catch_perf.dart

Index: third_party/pkg/angular/perf/try_catch_perf.dart
diff --git a/third_party/pkg/angular/perf/try_catch_perf.dart b/third_party/pkg/angular/perf/try_catch_perf.dart
new file mode 100644
index 0000000000000000000000000000000000000000..9112159b79fa766f003a696156610d7e2dcf1e2d
--- /dev/null
+++ b/third_party/pkg/angular/perf/try_catch_perf.dart
@@ -0,0 +1,26 @@
+library angular.perf.try_catch;
+
+import '_perf.dart';
+
+/**
+ * Compare with JS: http://jsperf.com/throw-new-error-vs-throw-name-error
+ *
+ * JavaScript vs Dart times on same machine:
+ *
+ *                      JavaScript        Dart
+ * try-catch no stack:   4,952,173   3,944,303 ops/sec
+ * try-catch with stack:   111,815     840,843 ops/sec
+ * try-catch read stack:     9,206       9,356 ops/sec
+ */
+main() {
+  var obj = {};
+  time('try-catch no stack', () {
+    try { throw obj; } catch(e) { return e; }
+  } );
+  time('try-catch with stack', () {
+    try { throw obj; } catch(e, s) { return s; }
+  } );
+  time('try-catch read stack', () {
+    try { throw obj; } catch(e, s) { return '$s'; }
+  } );
+}