Fix BaseTextmark lineNumber tracking

The following sequence would add the BaseTextmark to the wrong line:
1) Add a mark on line x
2) Move line x down by addign newlines above
3) Close and reopen the file
=> Mark would be readded to line x

Change-Id: Ia5d580b5893331974fb908e367b74df69fbb6572
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

src/plugins/bookmarks/bookmark.cpp

@@ -62,6 +62,7 @@ void Bookmark::updateLineNumber(int lineNumber)
         m_lineNumber = lineNumber;
         m_manager->updateBookmark(this);
     }
+    BaseTextMark::updateLineNumber(lineNumber);
 }
 
 void Bookmark::updateBlock(const QTextBlock &block)

src/plugins/debugger/breakpointmarker.cpp

@@ -68,6 +68,7 @@ void BreakpointMarker::removedFromEditor()
 void BreakpointMarker::updateLineNumber(int lineNumber)
 {
     breakHandler()->updateLineNumberFromMarker(m_id, lineNumber);
+    BaseTextMark::updateLineNumber(lineNumber);
 }
 
 } // namespace Internal

src/plugins/projectexplorer/taskhub.cpp

@@ -56,6 +56,7 @@ private:
 void TaskMark::updateLineNumber(int lineNumber)
 {
     ProjectExplorerPlugin::instance()->taskHub()->updateTaskLineNumber(m_id, lineNumber);
+    BaseTextMark::updateLineNumber(lineNumber);
 }
 
 void TaskMark::removedFromEditor()

src/plugins/texteditor/basetextmark.cpp

@@ -128,6 +128,11 @@ BaseTextMark::~BaseTextMark()
     Internal::TextEditorPlugin::instance()->baseTextMarkRegistry()->remove(this);
 }
 
+void BaseTextMark::updateLineNumber(int lineNumber)
+{
+    m_line = lineNumber;
+}
+
 void BaseTextMark::updateMarker()
 {
     if (m_markableInterface)

src/plugins/texteditor/basetextmark.h

@@ -61,6 +61,8 @@ public:
     BaseTextMark(const QString &fileName, int lineNumber);
     virtual ~BaseTextMark();
 
+    void updateLineNumber(int lineNumber);
+
     // call this if the icon has changed.
     void updateMarker();