Refactored the AST visitors.

Now, the ASTVisitor constructor takes a valid reference to a TranslationUnit.

src/libs/cplusplus/ASTParent.cpp

@@ -32,8 +32,8 @@
 
 using namespace CPlusPlus;
 
-ASTParent::ASTParent(Control *control, AST *rootNode)
-    : ASTVisitor(control)
+ASTParent::ASTParent(TranslationUnit *translationUnit, AST *rootNode)
+    : ASTVisitor(translationUnit)
 {
     accept(rootNode);
 }

src/libs/cplusplus/ASTParent.h

@@ -39,7 +39,7 @@ namespace CPlusPlus {
 class CPLUSPLUS_EXPORT ASTParent: protected ASTVisitor
 {
 public:
-    ASTParent(Control *control, AST *rootNode);
+    ASTParent(TranslationUnit *transaltionUnit, AST *rootNode);
     virtual ~ASTParent();
 
     AST *operator()(AST *ast) const;

src/libs/cplusplus/CheckUndefinedSymbols.cpp

@@ -41,7 +41,7 @@ using namespace CPlusPlus;
 
 
 CheckUndefinedSymbols::CheckUndefinedSymbols(Document::Ptr doc)
-    : ASTVisitor(doc->control()), _doc(doc)
+    : ASTVisitor(doc->translationUnit()), _doc(doc)
 { }
 
 CheckUndefinedSymbols::~CheckUndefinedSymbols()

src/libs/cplusplus/CppDocument.cpp

@@ -404,7 +404,7 @@ void Document::check(CheckMode mode)
     if (! isParsed())
         parse();
 
-    Semantic semantic(_control);
+    Semantic semantic(_translationUnit);
     if (mode == FastCheck)
         semantic.setSkipFunctionBodies(true);
 

src/libs/cplusplus/FindUsages.cpp

@@ -41,12 +41,12 @@
 using namespace CPlusPlus;
 
 FindUsages::FindUsages(Document::Ptr doc, const Snapshot &snapshot, QFutureInterface<Usage> *future)
-    : ASTVisitor(doc->control()),
+    : ASTVisitor(doc->translationUnit()),
       _future(future),
       _doc(doc),
       _snapshot(snapshot),
       _source(_doc->source()),
-      _sem(doc->control()),
+      _sem(doc->translationUnit()),
       _inSimpleDeclaration(0)
 {
     _snapshot.insert(_doc);

src/libs/cplusplus/ResolveExpression.cpp

@@ -72,9 +72,9 @@ static QList<_Tp> removeDuplicates(const QList<_Tp> &results)
 // ResolveExpression
 /////////////////////////////////////////////////////////////////////
 ResolveExpression::ResolveExpression(const LookupContext &context)
-    : ASTVisitor(context.expressionDocument()->control()),
+    : ASTVisitor(context.expressionDocument()->translationUnit()),
       _context(context),
-      sem(_context.control())
+      sem(context.expressionDocument()->translationUnit())
 { }
 
 ResolveExpression::~ResolveExpression()