Import math library with a prefix.

Review URL: https://codereview.chromium.org//14111004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/stack_trace@21406 260f80e4-7a28-3924-810f-c04153c831b5
diff --git a/pkgs/stack_trace/lib/src/trace.dart b/pkgs/stack_trace/lib/src/trace.dart
index bed1d5d..33b2dd4 100644
--- a/pkgs/stack_trace/lib/src/trace.dart
+++ b/pkgs/stack_trace/lib/src/trace.dart
@@ -5,7 +5,7 @@
 library trace;
 
 import 'dart:uri';
-import 'dart:math';
+import 'dart:math' as math;
 
 import 'frame.dart';
 
@@ -117,7 +117,7 @@
     if (frames.length == '') return '';
 
     // Figure out the longest path so we know how much to pad.
-    var longest = frames.map((frame) => frame.location.length).reduce(max);
+    var longest = frames.map((frame) => frame.location.length).reduce(math.max);
 
     // Print out the stack trace nicely formatted.
     return frames.map((frame) {