Replace `ifNil:[...]` with `isNil ifTrue:[...]`
The latter is optimized by compilers and therefore faster.
"{ Package: 'stx:goodies/petitparser/parsers/java' }"
"{ NameSpace: Smalltalk }"
PJStatementNode subclass:#PJIfStatementNode
instanceVariableNames:'condition thenPart elsePart'
classVariableNames:''
poolDictionaries:''
category:'PetitJava-AST'
!
PJIfStatementNode comment:'Node representing an if statement. If with and without else are both covere by this node'
!
!PJIfStatementNode methodsFor:'accessing'!
condition
^ condition
!
condition: anObject
condition := anObject
!
elsePart
^ elsePart
!
elsePart: anObject
elsePart := anObject
!
thenPart
^ thenPart
!
thenPart: anObject
thenPart := anObject
! !
!PJIfStatementNode methodsFor:'visiting'!
acceptVisitor: aVisitor
^ aVisitor visitIfStatementNode: self
! !