Add TryClause
Add tests for TryClause backend conversion
RedHatTransformer: Move transformObjectDefinition

to fix the alphabetical order of the methods
Retry source-gen if it failed, compiling it first

Sometimes, I have to ‘ant clean’ when testing because the IDE and the
CLI compiler mess up the binaries; that clean unfortunately also removes
source-gen, so then I have to re-run ‘ant csg’ (“compile source-gen”).
Now it should be done automatically.
Add TryCatchFinally (RedHat’s TryCatchStatement)
Add tests for TryCatchFinally backend conversion