Portability fixes
* do not use Object>>asString. Not all Smalltalks implement it.
* do not use Object>>name. Not all Smalltalks implement it.
* do not use Dictionary keysAndValuesRemove:. Not all Smalltalks implement it.
* do not use Class>>methods The semantics is different among Smalltalks.
Use `Class methodDictionary values` instead.
* do not modify dictionary in #at:ifAbsentPut: block!
"{ Package: 'stx:goodies/petitparser/compiler' }"
"{ NameSpace: Smalltalk }"
PPCRewritingVisitor subclass:#PPCCopyVisitor
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'PetitCompiler-Visitors'
!
!PPCCopyVisitor methodsFor:'as yet unclassified'!
visitNode: node
| newNode |
self change.
newNode := node copy.
^ super visitNode: newNode.
! !