Fix a null-pointer reference and minor clean-up

Fix a null-pointer reference and minor clean-up

R=scheglov@google.com

Committed: https://code.google.com/p/dart/source/detail?r=44844

[Brian Wilkerson, 2015-04-01 15:47:43]

brianwilkerson@google.com changed reviewers:
+ scheglov@google.com

[scheglov, 2015-04-01 17:11:30]

https://codereview.chromium.org/1053723002/diff/1/pkg/analysis_server/lib/src...
File pkg/analysis_server/lib/src/services/correction/fix_internal.dart (right):

https://codereview.chromium.org/1053723002/diff/1/pkg/analysis_server/lib/src...
pkg/analysis_server/lib/src/services/correction/fix_internal.dart:381: }
Could you add a test for this?
Probably something like:

main() {
  final int v;
}

or even with a top-level variable.

final int V;

[Brian Wilkerson, 2015-04-01 20:56:37]

https://codereview.chromium.org/1053723002/diff/1/pkg/analysis_server/lib/src...
File pkg/analysis_server/lib/src/services/correction/fix_internal.dart (right):

https://codereview.chromium.org/1053723002/diff/1/pkg/analysis_server/lib/src...
pkg/analysis_server/lib/src/services/correction/fix_internal.dart:381: }
Done

[scheglov, 2015-04-01 20:57:17]

LGTM

[Brian Wilkerson, 2015-04-01 20:57:45]

Committed patchset #2 (id:20001) manually as 44844 (presubmit successful).