package net.sourceforge.phpdt.internal.compiler;
import net.sourceforge.phpdt.core.compiler.IProblem;
+import net.sourceforge.phpdt.internal.compiler.ast.AND_AND_Expression;
+import net.sourceforge.phpdt.internal.compiler.ast.AllocationExpression;
+import net.sourceforge.phpdt.internal.compiler.ast.Argument;
+import net.sourceforge.phpdt.internal.compiler.ast.ArrayAllocationExpression;
+import net.sourceforge.phpdt.internal.compiler.ast.ArrayInitializer;
+import net.sourceforge.phpdt.internal.compiler.ast.ArrayQualifiedTypeReference;
+import net.sourceforge.phpdt.internal.compiler.ast.ArrayReference;
+import net.sourceforge.phpdt.internal.compiler.ast.ArrayTypeReference;
+import net.sourceforge.phpdt.internal.compiler.ast.AssertStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.Assignment;
+import net.sourceforge.phpdt.internal.compiler.ast.BinaryExpression;
+import net.sourceforge.phpdt.internal.compiler.ast.Block;
+import net.sourceforge.phpdt.internal.compiler.ast.BreakStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.CaseStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.CastExpression;
+import net.sourceforge.phpdt.internal.compiler.ast.Clinit;
+import net.sourceforge.phpdt.internal.compiler.ast.CompilationUnitDeclaration;
+import net.sourceforge.phpdt.internal.compiler.ast.CompoundAssignment;
+import net.sourceforge.phpdt.internal.compiler.ast.ConditionalExpression;
+import net.sourceforge.phpdt.internal.compiler.ast.ConstructorDeclaration;
+import net.sourceforge.phpdt.internal.compiler.ast.ContinueStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.DoStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.DoubleLiteral;
+import net.sourceforge.phpdt.internal.compiler.ast.EmptyStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.EqualExpression;
+import net.sourceforge.phpdt.internal.compiler.ast.ExplicitConstructorCall;
+import net.sourceforge.phpdt.internal.compiler.ast.ExtendedStringLiteral;
+import net.sourceforge.phpdt.internal.compiler.ast.FalseLiteral;
+import net.sourceforge.phpdt.internal.compiler.ast.FieldDeclaration;
+import net.sourceforge.phpdt.internal.compiler.ast.FieldReference;
+import net.sourceforge.phpdt.internal.compiler.ast.FloatLiteral;
+import net.sourceforge.phpdt.internal.compiler.ast.ForStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.IfStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.ImportReference;
+import net.sourceforge.phpdt.internal.compiler.ast.Initializer;
+import net.sourceforge.phpdt.internal.compiler.ast.InstanceOfExpression;
+import net.sourceforge.phpdt.internal.compiler.ast.IntLiteral;
+import net.sourceforge.phpdt.internal.compiler.ast.LabeledStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.LocalDeclaration;
+import net.sourceforge.phpdt.internal.compiler.ast.LongLiteral;
+import net.sourceforge.phpdt.internal.compiler.ast.MessageSend;
+import net.sourceforge.phpdt.internal.compiler.ast.MethodDeclaration;
+import net.sourceforge.phpdt.internal.compiler.ast.NullLiteral;
+import net.sourceforge.phpdt.internal.compiler.ast.OR_OR_Expression;
+import net.sourceforge.phpdt.internal.compiler.ast.PostfixExpression;
+import net.sourceforge.phpdt.internal.compiler.ast.PrefixExpression;
+import net.sourceforge.phpdt.internal.compiler.ast.QualifiedAllocationExpression;
+import net.sourceforge.phpdt.internal.compiler.ast.QualifiedNameReference;
+import net.sourceforge.phpdt.internal.compiler.ast.QualifiedSuperReference;
+import net.sourceforge.phpdt.internal.compiler.ast.QualifiedThisReference;
+import net.sourceforge.phpdt.internal.compiler.ast.QualifiedTypeReference;
+import net.sourceforge.phpdt.internal.compiler.ast.ReturnStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.SingleNameReference;
+import net.sourceforge.phpdt.internal.compiler.ast.SingleTypeReference;
+import net.sourceforge.phpdt.internal.compiler.ast.StringLiteral;
+import net.sourceforge.phpdt.internal.compiler.ast.SuperReference;
+import net.sourceforge.phpdt.internal.compiler.ast.SwitchStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.ThisReference;
+import net.sourceforge.phpdt.internal.compiler.ast.ThrowStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.TrueLiteral;
+import net.sourceforge.phpdt.internal.compiler.ast.TryStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.TypeDeclaration;
+import net.sourceforge.phpdt.internal.compiler.ast.UnaryExpression;
+import net.sourceforge.phpdt.internal.compiler.ast.WhileStatement;
import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
import net.sourceforge.phpdt.internal.compiler.lookup.ClassScope;
import net.sourceforge.phpdt.internal.compiler.lookup.CompilationUnitScope;
import net.sourceforge.phpdt.internal.compiler.lookup.MethodScope;
-import net.sourceforge.phpeclipse.internal.compiler.ast.AND_AND_Expression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.AllocationExpression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.Argument;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ArrayAllocationExpression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ArrayInitializer;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ArrayQualifiedTypeReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ArrayReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ArrayTypeReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.AssertStatement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.Assignment;
-import net.sourceforge.phpeclipse.internal.compiler.ast.BinaryExpression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.Block;
-import net.sourceforge.phpeclipse.internal.compiler.ast.BreakStatement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.CaseStatement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.CastExpression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.Clinit;
-import net.sourceforge.phpeclipse.internal.compiler.ast.CompilationUnitDeclaration;
-import net.sourceforge.phpeclipse.internal.compiler.ast.CompoundAssignment;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ConditionalExpression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ConstructorDeclaration;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ContinueStatement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.DoStatement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.DoubleLiteral;
-import net.sourceforge.phpeclipse.internal.compiler.ast.EmptyStatement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.EqualExpression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ExplicitConstructorCall;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ExtendedStringLiteral;
-import net.sourceforge.phpeclipse.internal.compiler.ast.FalseLiteral;
-import net.sourceforge.phpeclipse.internal.compiler.ast.FieldDeclaration;
-import net.sourceforge.phpeclipse.internal.compiler.ast.FieldReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.FloatLiteral;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ForStatement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.IfStatement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ImportReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.Initializer;
-import net.sourceforge.phpeclipse.internal.compiler.ast.InstanceOfExpression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.IntLiteral;
-import net.sourceforge.phpeclipse.internal.compiler.ast.LabeledStatement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.LocalDeclaration;
-import net.sourceforge.phpeclipse.internal.compiler.ast.LongLiteral;
-import net.sourceforge.phpeclipse.internal.compiler.ast.MessageSend;
-import net.sourceforge.phpeclipse.internal.compiler.ast.MethodDeclaration;
-import net.sourceforge.phpeclipse.internal.compiler.ast.NullLiteral;
-import net.sourceforge.phpeclipse.internal.compiler.ast.OR_OR_Expression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.PostfixExpression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.PrefixExpression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.QualifiedAllocationExpression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.QualifiedNameReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.QualifiedSuperReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.QualifiedThisReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.QualifiedTypeReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ReturnStatement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.SingleNameReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.SingleTypeReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.StringLiteral;
-import net.sourceforge.phpeclipse.internal.compiler.ast.SuperReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.SwitchStatement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ThisReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ThrowStatement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.TrueLiteral;
-import net.sourceforge.phpeclipse.internal.compiler.ast.TryStatement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.TypeDeclaration;
-import net.sourceforge.phpeclipse.internal.compiler.ast.UnaryExpression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.WhileStatement;
/**
* A visitor for iterating through the parse tree.