Codechange: Use override specifer for overriding member declarations

This is a C++11 feature that allows the compiler to check that a virtual
member declaration overrides a base-class member with the same signature.

Also src/blitter/32bpp_anim_sse4.hpp +38 is no longer erroneously marked
as virtual despite being a template.

src/game/game_config.hpp

@@ -42,7 +42,7 @@ public:
 	bool ResetInfo(bool force_exact_match);
 
 protected:
-	/* virtual */ ScriptInfo *FindInfo(const char *name, int version, bool force_exact_match);
+	ScriptInfo *FindInfo(const char *name, int version, bool force_exact_match) override;
 };
 
 #endif /* GAME_CONFIG_HPP */

src/game/game_info.hpp

@@ -40,7 +40,7 @@ public:
 	 */
 	const char *GetAPIVersion() const { return this->api_version; }
 
-	/* virtual */ bool IsDeveloperOnly() const { return this->is_developer_only; }
+	bool IsDeveloperOnly() const override { return this->is_developer_only; }
 
 private:
 	int min_loadable_version; ///< The Game can load savegame data if the version is equal or greater than this.

src/game/game_instance.hpp

@@ -25,14 +25,14 @@ public:
 	 */
 	void Initialize(class GameInfo *info);
 
-	/* virtual */ int GetSetting(const char *name);
-	/* virtual */ ScriptInfo *FindLibrary(const char *library, int version);
+	int GetSetting(const char *name) override;
+	ScriptInfo *FindLibrary(const char *library, int version) override;
 
 private:
-	/* virtual */ void RegisterAPI();
-	/* virtual */ void Died();
-	/* virtual */ CommandCallback *GetDoCommandCallback();
-	/* virtual */ void LoadDummyScript() {}
+	void RegisterAPI() override;
+	void Died() override;
+	CommandCallback *GetDoCommandCallback() override;
+	void LoadDummyScript() override {}
 };
 
 #endif /* GAME_INSTANCE_HPP */

src/game/game_scanner.hpp

@@ -16,7 +16,7 @@
 
 class GameScannerInfo : public ScriptScanner {
 public:
-	/* virtual */ void Initialize();
+	void Initialize() override;
 
 	/**
 	 * Check if we have a game by name and version available in our list.
@@ -28,17 +28,17 @@ public:
 	class GameInfo *FindInfo(const char *nameParam, int versionParam, bool force_exact_match);
 
 protected:
-	/* virtual */ void GetScriptName(ScriptInfo *info, char *name, const char *last);
-	/* virtual */ const char *GetFileName() const { return PATHSEP "info.nut"; }
-	/* virtual */ Subdirectory GetDirectory() const { return GAME_DIR; }
-	/* virtual */ const char *GetScannerName() const { return "Game Scripts"; }
-	/* virtual */ void RegisterAPI(class Squirrel *engine);
+	void GetScriptName(ScriptInfo *info, char *name, const char *last) override;
+	const char *GetFileName() const override { return PATHSEP "info.nut"; }
+	Subdirectory GetDirectory() const override { return GAME_DIR; }
+	const char *GetScannerName() const override { return "Game Scripts"; }
+	void RegisterAPI(class Squirrel *engine) override;
 };
 
 
 class GameScannerLibrary : public ScriptScanner {
 public:
-	/* virtual */ void Initialize();
+	void Initialize() override;
 
 	/**
 	 * Find a library in the pool.
@@ -49,11 +49,11 @@ public:
 	class GameLibrary *FindLibrary(const char *library, int version);
 
 protected:
-	/* virtual */ void GetScriptName(ScriptInfo *info, char *name, const char *last);
-	/* virtual */ const char *GetFileName() const { return PATHSEP "library.nut"; }
-	/* virtual */ Subdirectory GetDirectory() const { return GAME_LIBRARY_DIR; }
-	/* virtual */ const char *GetScannerName() const { return "GS Libraries"; }
-	/* virtual */ void RegisterAPI(class Squirrel *engine);
+	void GetScriptName(ScriptInfo *info, char *name, const char *last) override;
+	const char *GetFileName() const override { return PATHSEP "library.nut"; }
+	Subdirectory GetDirectory() const override { return GAME_LIBRARY_DIR; }
+	const char *GetScannerName() const override { return "GS Libraries"; }
+	void RegisterAPI(class Squirrel *engine) override;
 };
 
 #endif /* GAME_SCANNER_HPP */

src/game/game_text.cpp

@@ -151,7 +151,7 @@ struct StringListReader : StringReader {
 	{
 	}
 
-	/* virtual */ char *ReadLine(char *buffer, const char *last)
+	char *ReadLine(char *buffer, const char *last) override
 	{
 		if (this->p == this->end) return NULL;
 
@@ -242,7 +242,7 @@ public:
 		this->FileScanner::Scan(".txt", directory, false);
 	}
 
-	/* virtual */ bool AddFile(const char *filename, size_t basepath_length, const char *tar_filename)
+	bool AddFile(const char *filename, size_t basepath_length, const char *tar_filename) override
 	{
 		if (strcmp(filename, exclude) == 0) return true;