Refactored NewWarningDetectorTest.java
Added files (java and xml) for the refactoring "pull up method". It
should shows that the (environment-)ast doesn't calculate the same
hashcode
testNeedBracesWithPullUpMethodHaveNotTheSameHashcode()
Added files (java and xml) for showing that the file-ast will not
calculate the same hashcode if the refactoring "extract method" is act
out
Added testFinalClassWithExtractMethodHaveNotTheSameHashcode()
Added files (java and xml) for testing the refactoring "pull up method"
for the class-ast
Added testFinalClassWithPullUpMethodHaveNotTheSameHashcode()