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/agos/detection.cpp b/engines/agos/detection.cpp
index dc96eb6ef6..dbc4ee9145 100644
--- a/engines/agos/detection.cpp
+++ b/engines/agos/detection.cpp
@@ -120,13 +120,13 @@ public:
 	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;
 };
 
 bool AgosMetaEngine::hasFeature(MetaEngineFeature f) const {
 	return
-		(f == kSupportsListSaves);
+		(f == kSupportsListSaves) ||
+		(f == kSimpleSavesNames);
 }
 
 bool AGOS::AGOSEngine::hasFeature(EngineFeature f) const {
@@ -208,8 +208,6 @@ SaveStateList AgosMetaEngine::listSaves(const char *target) const {
 	return saveList;
 }
 
-bool AgosMetaEngine::simpleSaveNames() const { return true; }
-
 int AgosMetaEngine::getMaximumSaveSlot() const { return 999; }
 
 #if PLUGIN_ENABLED_DYNAMIC(AGOS)