GROOVY-11443: Support multiple Requires/Ensures/Invariant annotations…

[paulk-asert]

… in groovy-contracts

[paulk-asert]

I still have some tests to write but manual testing seems to work as expected.
Update: Initial tests complete.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 92.62295% with 9 lines in your changes missing coverage. Please review.

Project coverage is 68.6531%. Comparing base (6cd477b) to head (6725458).
Report is 184 commits behind head on master.

Additional details and impacted files

@@                Coverage Diff                 @@
##               master      #2100        +/-   ##
==================================================
+ Coverage     68.5957%   68.6531%   +0.0574%     
- Complexity      29233      29387       +154     
==================================================
  Files            1426       1426                
  Lines          113494     113635       +141     
  Branches        19548      19596        +48     
==================================================
+ Hits            77852      78014       +162     
+ Misses          29088      29067        -21     
  Partials         6554       6554                

Files	Coverage Δ
...va/org/codehaus/groovy/ast/tools/GeneralUtils.java	85.6132% <100.0000%> (+1.0699%)	⬆️
.../ClosureExpressionEvaluationASTTransformation.java	95.8333% <100.0000%> (+0.3788%)	⬆️
...ontracts/ast/visitor/AnnotationClosureVisitor.java	90.9483% <100.0000%> (ø)
...ache/groovy/contracts/ast/visitor/BaseVisitor.java	85.7143% <ø> (ø)
.../contracts/classgen/asm/ContractClosureWriter.java	86.3014% <100.0000%> (ø)
...tracts/common/impl/EnsuresAnnotationProcessor.java	66.6667% <100.0000%> (ø)
...ntracts/common/impl/lc/PostconditionLifecycle.java	92.8571% <100.0000%> (-0.4762%)	⬇️
...racts/common/spi/ProcessingContextInformation.java	56.6667% <100.0000%> (ø)
...g/apache/groovy/contracts/domain/AssertionMap.java	100.0000% <100.0000%> (ø)
...apache/groovy/contracts/domain/ClassInvariant.java	60.0000% <100.0000%> (ø)
... and 15 more

... and 46 files with indirect coverage changes

[daniellansun]

+1