Fix invalid location in inline super constructor.

tests/compiler/dart2js_extra/source_mapping_crash_test.dart

Index: tests/compiler/dart2js_extra/source_mapping_crash_test.dart
diff --git a/tests/compiler/dart2js_extra/inline_position_crash_test.dart b/tests/compiler/dart2js_extra/source_mapping_crash_test.dart
similarity index 69%
copy from tests/compiler/dart2js_extra/inline_position_crash_test.dart
copy to tests/compiler/dart2js_extra/source_mapping_crash_test.dart
index d3881aa2017c97d6d4d1493557bdf2dd29391401..b5cc2e0f63dea0c096f9f25645622f792bd455fd 100644
--- a/tests/compiler/dart2js_extra/inline_position_crash_test.dart
+++ b/tests/compiler/dart2js_extra/source_mapping_crash_test.dart
@@ -2,12 +2,14 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-#source('inline_position_crash_source.dart');
+#source('source_mapping_crash_source.dart');
 
 class Sub extends Super {
-  Sub() : super();
+  Sub(var x) : super(x.y);
 }
 
+class X { var y; }
+
 main() {
-  new Sub();
+  new Sub(new X());
 }