ALL: Make simpleSaveNames() a MetaEngineFeature

Added it into hasFeature() of all engines which returned `true` in
simpleSaveNames() before.

As mentioned in #788, SCI is not always using simple names, so it
doesn't have such feature now.

1 files changed, 2 insertions, 4 deletions

diff --git a/engines/voyeur/detection.cpp b/engines/voyeur/detection.cpp
index 76668eb370..eefe174e94 100644
--- a/engines/voyeur/detection.cpp
+++ b/engines/voyeur/detection.cpp
@@ -81,7 +81,6 @@ public:
 	virtual bool hasFeature(MetaEngineFeature f) const;
 	virtual bool createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const;
 	virtual SaveStateList listSaves(const char *target) const;
-	virtual bool simpleSaveNames() const;
 	virtual int getMaximumSaveSlot() const;
 	virtual void removeSaveState(const char *target, int slot) const;
 	SaveStateDescriptor querySaveMetaInfos(const char *target, int slot) const;
@@ -93,7 +92,8 @@ bool VoyeurMetaEngine::hasFeature(MetaEngineFeature f) const {
 		(f == kSupportsLoadingDuringStartup) ||
 		(f == kSupportsDeleteSave) ||
 		(f == kSavesSupportMetaInfo) ||
-		(f == kSavesSupportThumbnail);
+		(f == kSavesSupportThumbnail) ||
+		(f == kSimpleSavesNames);
 }
 
 bool Voyeur::VoyeurEngine::hasFeature(EngineFeature f) const {
@@ -144,8 +144,6 @@ SaveStateList VoyeurMetaEngine::listSaves(const char *target) const {
 	return saveList;
 }
 
-bool VoyeurMetaEngine::simpleSaveNames() const { return true; }
-
 int VoyeurMetaEngine::getMaximumSaveSlot() const {
 	return MAX_SAVES;
 }