Added constraints for operators, 'external' constraints for methods

IDEHelper/Tests/src/Generics.bf

@@ -0,0 +1,45 @@
+using System;
+
+namespace Tests
+{
+	class Generics
+	{
+		class ClassA : IDisposable
+		{
+			public void Dispose()
+			{
+
+			}
+		}
+
+		static void DoDispose<T>(mut T val) where T : IDisposable
+		{
+			val.Dispose();
+		}
+
+		struct Disposer<T>
+		{
+			static void UseDispose(IDisposable disp)
+			{
+
+			}
+
+			static void DoDisposeA(mut T val) where T : IDisposable
+			{
+				val.Dispose();
+				UseDispose(val);
+			}
+
+			static void DoDisposeB(mut T val) where T : IDisposable
+			{
+				val.Dispose();
+			}
+		}
+		
+		[Test]
+		public static void TestBasics()
+		{
+
+		}
+	}
+}