Debugger: Make disassembler caching smarter.

Check if address is contained in range of lines.

Task-number: QTCREATORBUG-5205
Change-Id: I12a4f2f2f3837e164fd093e80fb427e9234136af
Reviewed-on: http://codereview.qt.nokia.com/1017
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>

src/plugins/debugger/disassembleragent.h

@@ -72,6 +72,9 @@ public:
     bool isMixed() const;
 
 private:
+    void setContentsToEditor(const DisassemblerLines &contents);
+    int indexOf(const Location &loc) const;
+
     DisassemblerAgentPrivate *d;
 };