Alternative implementation of the indexer. It is a little bit slower, but I'm going to make it faster.

Unfortunately the refactoring of the indexer is kind of necessary. I need to merge the new binding pass.

src/libs/cplusplus/PreprocessorEnvironment.h

@@ -56,6 +56,7 @@
 #include "CPlusPlusForwardDeclarations.h"
 
 #include <QVector>
+#include <QList>
 #include <QByteArray>
 
 namespace CPlusPlus {
@@ -89,6 +90,9 @@ public:
     Macro **lastMacro()
     { return _macros + _macro_count + 1; }
 
+    void reset();
+    void addMacros(const QList<Macro> &macros);
+
 private:
     static unsigned hashCode(const QByteArray &s);
     void rehash();