Remove support for the old Span classes from source_maps.

pkg/source_maps/test/refactor_test.dart

Index: pkg/source_maps/test/refactor_test.dart
diff --git a/pkg/source_maps/test/refactor_test.dart b/pkg/source_maps/test/refactor_test.dart
index 5d0abf1e25f8f83016b4f583ea9ae72a1ccc43f2..08b896510cde9e273431650247f510455b3fed4a 100644
--- a/pkg/source_maps/test/refactor_test.dart
+++ b/pkg/source_maps/test/refactor_test.dart
@@ -6,13 +6,13 @@ library polymer.test.refactor_test;
 
 import 'package:unittest/unittest.dart';
 import 'package:source_maps/refactor.dart';
-import 'package:source_maps/span.dart';
 import 'package:source_maps/parser.dart' show parse, Mapping;
+import 'package:source_span/source_span.dart';
 
 main() {
   group('conflict detection', () {
     var original = "0123456789abcdefghij";
-    var file = new SourceFile.text('', original);
+    var file = new SourceFile(original);
 
     test('no conflict, in order', () {
       var txn = new TextEditTransaction(original, file);
@@ -48,7 +48,7 @@ main() {
   test('generated source maps', () {
     var original =
         "0123456789\n0*23456789\n01*3456789\nabcdefghij\nabcd*fghij\n";
-    var file = new SourceFile.text('', original);
+    var file = new SourceFile(original);
     var txn = new TextEditTransaction(original, file);
     txn.edit(27, 29, '__\n    ');
     txn.edit(34, 35, '___');
@@ -60,42 +60,90 @@ main() {
 
     // Line 1 and 2 are unmodified: mapping any column returns the beginning
     // of the corresponding line:
-    expect(_span(1, 1, map, file), "line 1, column 1 of .: \n0123456789");
-    expect(_span(1, 5, map, file), "line 1, column 1 of .: \n0123456789");
-    expect(_span(2, 1, map, file), "line 2, column 1 of .: \n0*23456789");
-    expect(_span(2, 8, map, file), "line 2, column 1 of .: \n0*23456789");
+    expect(_span(1, 1, map, file),
+        "line 1, column 1: \n"
+        "0123456789\n"
+        "^");
+    expect(_span(1, 5, map, file),
+        "line 1, column 1: \n"
+        "0123456789\n"
+        "^");
+    expect(_span(2, 1, map, file),
+        "line 2, column 1: \n"
+        "0*23456789\n"
+        "^");
+    expect(_span(2, 8, map, file),
+        "line 2, column 1: \n"
+        "0*23456789\n"
+        "^");
 
     // Line 3 is modified part way: mappings before the edits have the right
     // mapping, after the edits the mapping is null.
-    expect(_span(3, 1, map, file), "line 3, column 1 of .: \n01*3456789");
-    expect(_span(3, 5, map, file), "line 3, column 1 of .: \n01*3456789");
+    expect(_span(3, 1, map, file),
+        "line 3, column 1: \n"
+        "01*3456789\n"
+        "^");
+    expect(_span(3, 5, map, file),
+        "line 3, column 1: \n"
+        "01*3456789\n"
+        "^");
 
     // Start of edits map to beginning of the edit secion:
-    expect(_span(3, 6, map, file), "line 3, column 6 of .: \n01*3456789");
-    expect(_span(3, 7, map, file), "line 3, column 6 of .: \n01*3456789");
+    expect(_span(3, 6, map, file),
+        "line 3, column 6: \n"
+        "01*3456789\n"
+        "     ^");
+    expect(_span(3, 7, map, file),
+        "line 3, column 6: \n"
+        "01*3456789\n"
+        "     ^");
 
     // Lines added have no mapping (they should inherit the last mapping),
     // but the end of the edit region continues were we left off:
     expect(_span(4, 1, map, file), isNull);
-    expect(_span(4, 5, map, file), "line 3, column 8 of .: \n01*3456789");
+    expect(_span(4, 5, map, file),
+        "line 3, column 8: \n"
+        "01*3456789\n"
+        "       ^");
 
     // Subsequent lines are still mapped correctly:
     // a (in a___cd...)
-    expect(_span(5, 1, map, file), "line 4, column 1 of .: \nabcdefghij");
+    expect(_span(5, 1, map, file),
+        "line 4, column 1: \n"
+        "abcdefghij\n"
+        "^");
     // _ (in a___cd...)
-    expect(_span(5, 2, map, file), "line 4, column 2 of .: \nabcdefghij");
+    expect(_span(5, 2, map, file),
+        "line 4, column 2: \n"
+        "abcdefghij\n"
+        " ^");
     // _ (in a___cd...)
-    expect(_span(5, 3, map, file), "line 4, column 2 of .: \nabcdefghij");
+    expect(_span(5, 3, map, file),
+        "line 4, column 2: \n"
+        "abcdefghij\n"
+        " ^");
     // _ (in a___cd...)
-    expect(_span(5, 4, map, file), "line 4, column 2 of .: \nabcdefghij");
+    expect(_span(5, 4, map, file),
+        "line 4, column 2: \n"
+        "abcdefghij\n"
+        " ^");
     // c (in a___cd...)
-    expect(_span(5, 5, map, file), "line 4, column 3 of .: \nabcdefghij");
-    expect(_span(6, 1, map, file), "line 5, column 1 of .: \nabcd*fghij");
-    expect(_span(6, 8, map, file), "line 5, column 1 of .: \nabcd*fghij");
+    expect(_span(5, 5, map, file),
+        "line 4, column 3: \n"
+        "abcdefghij\n"
+        "  ^");
+    expect(_span(6, 1, map, file),
+        "line 5, column 1: \n"
+        "abcd*fghij\n"
+        "^");
+    expect(_span(6, 8, map, file),
+        "line 5, column 1: \n"
+        "abcd*fghij\n"
+        "^");
   });
 }
 
 String _span(int line, int column, Mapping map, SourceFile file) {
   var span = map.spanFor(line - 1, column - 1, files: {'': file});
-  return span == null ? null : span.getLocationMessage('').trim();
+  return span == null ? null : span.message('').trim();
 }