Correctly parse line ends for debugging.

test/mjsunit/regress/regress-2825.js

Index: test/mjsunit/regress/regress-2825.js
diff --git a/test/mjsunit/regress/regress-2825.js b/test/mjsunit/regress/regress-2825.js
new file mode 100644
index 0000000000000000000000000000000000000000..6ffd8ec150658fa6d2f3d0028117260c078db7a8
--- /dev/null
+++ b/test/mjsunit/regress/regress-2825.js
@@ -0,0 +1,40 @@
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --expose-debug-as debug
+
+// Do not edit this file with an editor that replaces \r with \r\n.
+// Variable definitions for i0 through i3 are each terminated with \r.
+function f() {
+  var i0 = 0;
  var i1 = 1;
  var i2 = 2;
  var i3 = 3;
+  var j0 = 0;
+  var j1 = 1;
+  var j2 = 2;
+  var j3 = 3;
+}
+
+Debug = debug.Debug;
+var exception = null;
+var break_point_hit = false;
+
+function listener(event, exec_state, event_data, data) {
+  if (event != Debug.DebugEvent.Break) return;
+  try {
+    break_point_hit = true;
+    assertEquals("  var i2 = 2;", exec_state.frame(0).sourceLineText());
+  } catch (e) {
+    print(e + e.stack);
+    exception = e;
+  }
+}
+
+Debug.setListener(listener);
+
+Debug.setBreakPoint(f, 3, 0);
+
+f();
+
+Debug.setListener(null);
+assertTrue(break_point_hit);
+assertNull(exception);