Issue #4534: add ANNOTATION_DEF to defaultTokens to fix NPE

[romani]

Issue #4534

@rnveach , please review and merge if you agree.
regression could be provided later, we need to unblock wercker.

[codecov-io]

Codecov Report

Merging #4535 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #4535   +/-   ##
======================================
  Coverage     100%    100%           
======================================
  Files         285     285           
  Lines       15333   15333           
  Branches     3494    3494           
======================================
  Hits        15333   15333

Impacted Files	Coverage Δ
...ools/checkstyle/checks/sizes/MethodCountCheck.java	100% <ø> (ø)	⬆️

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[rnveach]

@romani Shouldn't we look at regression?

[romani]

@rnveach, just planned to merge it sooner to avoid forcing all PR to rebase. Current implementation will not be very different even smth is found during testing.

[rnveach]

@romani Here is regression http://rveach.no-ip.org/checkstyle/regression/reports/77/ .