C++: Synchronize function decl/def refactoring.

When editing a function declaration or definition the code model
may realize the same changes have to be applied somewhere else. A
refactoring marker will pop up that can be clicked to perform the
changes. Alternatively, press enter to apply.

Change-Id: I2299a2ecfb6a8f87d4853fc7cfa99486f890a1d3
Reviewed-on: http://codereview.qt.nokia.com/2909
Reviewed-by: Leandro T. C. Melo <leandro.melo@nokia.com>

src/libs/cplusplus/CppDocument.h

@@ -45,6 +45,7 @@ namespace CPlusPlus {
 
 class Macro;
 class MacroArgumentReference;
+class LookupContext;
 
 class CPLUSPLUS_EXPORT Document
 {
@@ -386,7 +387,7 @@ public:
     Document::Ptr documentFromSource(const QByteArray &preprocessedCode,
                                      const QString &fileName) const;
 
-    Symbol *findMatchingDefinition(Symbol *symbol) const;
+    Symbol *findMatchingDefinition(Symbol *symbol, bool strict = false) const;
     Class *findMatchingClassDeclaration(Symbol *symbol) const;
 
 private:
@@ -396,6 +397,15 @@ private:
     _Base _documents;
 };
 
+void CPLUSPLUS_EXPORT findMatchingDeclaration(
+        const LookupContext &context,
+        Function *functionType,
+        QList<Declaration *> *typeMatch,
+        QList<Declaration *> *argumentCountMatch,
+        QList<Declaration *> *nameMatch);
+QList<Declaration *> CPLUSPLUS_EXPORT findMatchingDeclaration(
+        const LookupContext &context, Function *functionType);
+
 } // namespace CPlusPlus
 
 #endif // CPLUSPLUS_CPPDOCUMENT_H