Fixed codegen for empty (mapped) action block.
Although empty blocks are useless in practice, they may occur (and do occur in tests)
"{ Package: 'stx:goodies/petitparser/compiler' }"
"{ NameSpace: Smalltalk }"
Object subclass:#PPCCompiledMethod
instanceVariableNames:'id'
classVariableNames:''
poolDictionaries:''
category:'PetitCompiler-Core'
!
!PPCCompiledMethod methodsFor:'as yet unclassified'!
call
^ 'self ', self methodName, '.'.
!
id: value
id := value
!
methodName
^ id
! !
!PPCCompiledMethod class methodsFor:'documentation'!
version_MC
^ 'PetitCompiler-JanVrany.stx.85 147209f0-e9c3-11e4-944c-606720e43e2c 2015-04-23T15:14:39+01 JanVrany'
! !