Fix wrong overload, found by Nalin.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@2579 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CImageLoaderRGB.cpp

@@ -149,7 +149,7 @@ CImageLoaderRGB::CImageLoaderRGB()
 
 //! returns true if the file maybe is able to be loaded by this class
 //! based on the file extensions listed here
-bool CImageLoaderRGB::isALoadableFileExtension(const irr::core::stringc &fileName) const
+bool CImageLoaderRGB::isALoadableFileExtension(const core::string<c16>& filename) const
 {
 	return core::hasFileExtension( fileName, "rgb", "rgba", "sgi" ) ||
 	       core::hasFileExtension( fileName, "int", "inta", "bw" );

source/Irrlicht/CImageLoaderRGB.h

@@ -147,7 +147,7 @@ public:
 
 	//! returns true if the file maybe is able to be loaded by this class
 	//! based on the file extension (e.g. ".tga")
-	virtual bool isALoadableFileExtension(const irr::core::stringc &fileName) const;
+	virtual bool isALoadableFileExtension(const core::string<c16>& filename) const;
 
 	//! returns true if the file maybe is able to be loaded by this class
 	virtual bool isALoadableFileFormat(io::IReadFile* file) const;