Debugger: split editor related code off watchutils.{h,cpp}

This is now in sourceutils.{h,cpp} to make watchutils.{h,cpp}
better acessible to the debugger auto-tests.

Change-Id: Ie87e715bc7018ca190a460c37dfd19bc897059f0
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>

src/plugins/debugger/gdb/gdbengine.cpp

@@ -51,6 +51,7 @@
 #include "disassembleragent.h"
 #include "gdboptionspage.h"
 #include "memoryagent.h"
+#include "sourceutils.h"
 #include "watchutils.h"
 
 #include "breakhandler.h"
@@ -5448,6 +5449,14 @@ void GdbEngine::interruptLocalInferior(qint64 pid)
     }
 }
 
+QByteArray GdbEngine::dotEscape(QByteArray str)
+{
+    str.replace(' ', '.');
+    str.replace('\\', '.');
+    str.replace('/', '.');
+    return str;
+}
+
 //
 // Factory
 //