Member predicate WhilePrintNode :: getStmtList
StmtList that is a child of the
AstNode that this print node represents.
label is used for pretty-printing a label in the parent-child relation in the ast-viewer.
StmtListNode class and the
getChild predicate uses
getStmtList to define a parent-child relation with labels.
index must be 0 or positive.
StmtList getStmtList ( int index , string label )