Change the pre-release range semantics.

Change the pre-release range semantics.

This allows ">=1.2.3-dev <1.2.3" to work how it looks like it should
work, as opposed to matching no versions at all.

R=rnystrom@google.com

Committed: https://github.com/dart-lang/pub_semver/commit/cf3b3494af9ad40687e33780a870bbfa87a11500

[Bob Nystrom, 2015-05-20 21:48:45]

LGTM!

https://codereview.chromium.org/1149543002/diff/1/lib/src/version_range.dart
File lib/src/version_range.dart (right):

https://codereview.chromium.org/1149543002/diff/1/lib/src/version_range.dart#...
lib/src/version_range.dart:103: // Instead, we ensure that release versions will
always be preferred to
"to" -> "over"

[nweiz, 2015-05-20 23:46:49]

Code review changes

[nweiz, 2015-05-20 23:46:55]

https://codereview.chromium.org/1149543002/diff/1/lib/src/version_range.dart
File lib/src/version_range.dart (right):

https://codereview.chromium.org/1149543002/diff/1/lib/src/version_range.dart#...
lib/src/version_range.dart:103: // Instead, we ensure that release versions will
always be preferred to
On 2015/05/20 21:48:45, Bob Nystrom wrote:
> "to" -> "over"

Done.

[nweiz, 2015-05-20 23:48:09]

Committed patchset #2 (id:20001) manually as
cf3b3494af9ad40687e33780a870bbfa87a11500 (presubmit successful).