Improve the readability of some human-consumed strings in source_maps.

R=jmesserly@google.com

Review URL: https://codereview.chromium.org//346983002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/source_maps@37530 260f80e4-7a28-3924-810f-c04153c831b5

pkgs/source_maps/CHANGELOG.md

diff --git a/pkgs/source_maps/CHANGELOG.md b/pkgs/source_maps/CHANGELOG.md
index 3730a10..55d7896 100644
--- a/pkgs/source_maps/CHANGELOG.md
+++ b/pkgs/source_maps/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 0.9.2+1
+
+* Minor readability improvements to `FixedSpan.getLocationMessage` and
+  `SpanException.toString`.
+
 ## 0.9.2
 
 * Add `SpanException` and `SpanFormatException` classes.

pkgs/source_maps/lib/span.dart

diff --git a/pkgs/source_maps/lib/span.dart b/pkgs/source_maps/lib/span.dart
index cc48f19..91cfcd3 100644
--- a/pkgs/source_maps/lib/span.dart
+++ b/pkgs/source_maps/lib/span.dart
@@ -64,7 +64,9 @@
 
   String getLocationMessage(String message,
       {bool useColors: false, String color}) {
-    return '$formatLocation: $message';
+    var source = url == null ? '' : ' of ${p.prettyUri(url)}';
+    return 'line ${start.line + 1}, column ${start.column + 1}$source: ' +
+        message;
   }
 
   bool operator ==(Span other) =>
@@ -375,7 +377,8 @@
 
   String toString({bool useColors: false, String color}) {
     if (span == null) return message;
-    return span.getLocationMessage(message, useColors: useColors, color: color);
+    return "Error on " + span.getLocationMessage(message,
+        useColors: useColors, color: color);
   }
 }
 

pkgs/source_maps/pubspec.yaml

diff --git a/pkgs/source_maps/pubspec.yaml b/pkgs/source_maps/pubspec.yaml
index 213587c..7fae470 100644
--- a/pkgs/source_maps/pubspec.yaml
+++ b/pkgs/source_maps/pubspec.yaml
@@ -1,5 +1,5 @@
 name: source_maps
-version: 0.9.2
+version: 0.9.2+1
 author: Dart Team <misc@dartlang.org>
 description: Library to programmatically manipulate source map files.
 homepage: http://www.dartlang.org