Added TypeOfExpression::preprocess(expression, document).

The method `preprocess' returns the preprocessed text for the given expression.

src/libs/cplusplus/TypeOfExpression.cpp

@@ -70,6 +70,12 @@ QList<TypeOfExpression::Result> TypeOfExpression::operator()(const QString &expr
     return resolveExpression(m_ast);
 }
 
+QString TypeOfExpression::preprocess(const QString &expression,
+                                     Document::Ptr document) const
+{
+    return preprocessedExpression(expression, m_snapshot, document);
+}
+
 ExpressionAST *TypeOfExpression::ast() const
 {
     return m_ast;

src/libs/cplusplus/TypeOfExpression.h

@@ -84,6 +84,8 @@ public:
                              Symbol *lastVisibleSymbol,
                              PreprocessMode mode = NoPreprocess);
 
+    QString preprocess(const QString &expression, Document::Ptr document) const;
+
     /**
      * Returns the AST of the last evaluated expression.
      */