Small code improvements

Author: alex-kulakov

Orm/Xtensive.Orm/Orm/Building/Builders/StorageMappingBuilder.cs

@@ -92,19 +92,18 @@ private void ProcessAll()
 
       foreach (var type in typesToProcess) {
         var underlyingType = type.UnderlyingType;
-        if (verbose)
-          if (BuildLog.IsLogged(LogLevel.Info))
-            BuildLog.Info(nameof(Strings.LogProcessingX), underlyingType.GetShortName());
+        if (verbose && BuildLog.IsLogged(LogLevel.Info)) {
+          BuildLog.Info(nameof(Strings.LogProcessingX), underlyingType.GetShortName());
+        }
         var request = new MappingRequest(underlyingType.Assembly, underlyingType.Namespace);
-        MappingResult result;
-        if (!mappingCache.TryGetValue(request, out result)) {
+        if (!mappingCache.TryGetValue(request, out var result)) {
           result = Process(underlyingType);
           mappingCache.Add(request, result);
         }
         else {
-          if (verbose)
-            if (BuildLog.IsLogged(LogLevel.Info))
-              BuildLog.Info(nameof(Strings.LogReusingCachedMappingInformationForX), underlyingType.GetShortName());
+          if (verbose && BuildLog.IsLogged(LogLevel.Info)) {
+            BuildLog.Info(nameof(Strings.LogReusingCachedMappingInformationForX), underlyingType.GetShortName());
+          }
         }
         type.MappingDatabase = result.MappingDatabase;
         type.MappingSchema = result.MappingSchema;
@@ -118,9 +117,9 @@ private MappingResult Process(Type type)
       var resultDatabase = !string.IsNullOrEmpty(rule.Database) ? rule.Database : defaultDatabase;
       var resultSchema = !string.IsNullOrEmpty(rule.Schema) ? rule.Schema : defaultSchema;
 
-      if (verbose)
-        if (BuildLog.IsLogged(LogLevel.Info))
-          BuildLog.Info(nameof(Strings.ApplyingRuleXToY), rule, type.GetShortName());
+      if (verbose && BuildLog.IsLogged(LogLevel.Info)) {
+        BuildLog.Info(nameof(Strings.ApplyingRuleXToY), rule, type.GetShortName());
+      }
 
       return new MappingResult(resultDatabase, resultSchema);
     }

Orm/Xtensive.Orm/Orm/Rse/Providers/Provider.cs

@@ -60,7 +60,12 @@ private set {
     protected abstract RecordSetHeader BuildHeader();
 
     private string DebuggerDisplayName {
-      get { return GetType().Name; }
+      get {
+        var type = GetType();
+        return type.IsGenericType
+          ? type.GetShortName()
+          : type.Name;
+      }
     }
 
     /// <summary>