Add VS product names to C# language versions

ILSpy/Languages/CSharpLanguage.cs

@@ -89,15 +89,15 @@ namespace ICSharpCode.ILSpy
 			get {
 				if (versions == null) {
 					versions = new List<LanguageVersion>() {
-						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp1.ToString(), "C# 1.0"),
-						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp2.ToString(), "C# 2.0"),
-						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp3.ToString(), "C# 3.0"),
-						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp4.ToString(), "C# 4.0"),
-						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp5.ToString(), "C# 5.0"),
-						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp6.ToString(), "C# 6.0"),
-						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp7.ToString(), "C# 7.0"),
-						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp7_1.ToString(), "C# 7.1"),
-						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp7_2.ToString(), "C# 7.2"),
+						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp1.ToString(), "C# 1.0 / VS .NET"),
+						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp2.ToString(), "C# 2.0 / VS 2005"),
+						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp3.ToString(), "C# 3.0 / VS 2008"),
+						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp4.ToString(), "C# 4.0 / VS 2010"),
+						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp5.ToString(), "C# 5.0 / VS 2012"),
+						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp6.ToString(), "C# 6.0 / VS 2015"),
+						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp7.ToString(), "C# 7.0 / VS 2017"),
+						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp7_1.ToString(), "C# 7.1 / VS 2017.3"),
+						new LanguageVersion(Decompiler.CSharp.LanguageVersion.CSharp7_2.ToString(), "C# 7.2 / VS 2017.4"),
 					};
 				}
 				return versions;