Don't crash on error at end-of-file.

Don't crash on error at end-of-file.

BUG=

Committed: https://github.com/dart-lang/sdk/commit/d4021e92a184a3d1c7b644fe2c6de4cb7a445a38

[Johnni Winther, 2015-11-02 13:05:37]

johnniwinther@google.com changed reviewers:
+ ahe@google.com

[Johnni Winther, 2015-11-02 13:05:37]

TBR

[Johnni Winther, 2015-11-02 13:06:07]

Committed patchset #1 (id:1) manually as
d4021e92a184a3d1c7b644fe2c6de4cb7a445a38 (presubmit successful).

[ahe, 2015-11-02 16:55:31]

lgtm

https://codereview.chromium.org/1415883011/diff/1/pkg/compiler/lib/src/io/sou...
File pkg/compiler/lib/src/io/source_file.dart (right):

https://codereview.chromium.org/1415883011/diff/1/pkg/compiler/lib/src/io/sou...
pkg/compiler/lib/src/io/source_file.dart:140: if (end > length) {
Add a TODO to turn this into an assertion. If you get the wrong position from,
for example, a patch file this could be very confusing.

[ahe, 2015-11-02 16:56:02]

https://codereview.chromium.org/1415883011/diff/1/pkg/compiler/lib/src/io/sou...
File pkg/compiler/lib/src/io/source_file.dart (right):

https://codereview.chromium.org/1415883011/diff/1/pkg/compiler/lib/src/io/sou...
pkg/compiler/lib/src/io/source_file.dart:140: if (end > length) {
On 2015/11/02 16:55:31, ahe wrote:
> Add a TODO to turn this into an assertion. If you get the wrong position from,
> for example, a patch file this could be very confusing.

I meant to say: "consider adding a TODO..."