move LyXerr QString specialisation to support/qstring_helpers

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@25829 a592a061-630c-0410-9148-cb99ea01b6c8

src/frontends/qt4/qt_helpers.cpp

@@ -57,12 +57,6 @@ using namespace lyx::support;
 
 namespace lyx {
 
-LyXErr & operator<<(LyXErr & err, QString const & str)
-{
-	return err << fromqstr(str);
-}
-
-
 FileName libFileSearch(QString const & dir, QString const & name,
 				QString const & ext)
 {

src/frontends/qt4/qt_helpers.h

@@ -33,9 +33,6 @@ namespace lyx {
 namespace support { class FileName; }
 
 class BufferParams;
-class LyXErr;
-
-LyXErr & operator<<(LyXErr &, QString const &);
 
 namespace frontend {
 

src/support/qstring_helpers.cpp

@@ -12,6 +12,9 @@
 
 #include <config.h>
 
+#include "support/qstring_helpers.h"
+
+#include "support/debug.h"
 #include "support/docstring.h"
 
 #include <QString>
@@ -19,6 +22,12 @@
 
 namespace lyx {
 
+LyXErr & operator<<(LyXErr & err, QString const & str)
+{
+	return err << fromqstr(str);
+}
+
+
 QString toqstr(char const * str)
 {
 	return QString::fromUtf8(str);

src/support/qstring_helpers.h

@@ -18,6 +18,10 @@ class QString;
 
 namespace lyx {
 
+class LyXErr;
+
+LyXErr & operator<<(LyXErr &, QString const &);
+
 /**
  * toqstr - convert a UTF8 encoded char * into a QString
  *