Fixed using context/ added unit test for try ... catch case.

ICSharpCode.NRefactory.CSharp/Completion/CSharpCompletionEngine.cs

@@ -1900,7 +1900,12 @@ namespace ICSharpCode.NRefactory.CSharp.Completion
 				}
 				
 				if (type != null) {
-					// insert target type into compilation unit, to respect the 
+					if (currentType == null) {
+						var tsvisitor2 = new TypeSystemConvertVisitor (this.CSharpParsedFile.FileName);
+						baseUnit.AcceptVisitor (tsvisitor2, null);
+						return Tuple.Create (tsvisitor2.ParsedFile, (AstNode)type.Target, baseUnit);
+					}
+					
 					var target = type.Target;
 					target.Remove ();
 					var node = Unit.GetNodeAt (location) ?? Unit;

ICSharpCode.NRefactory.Tests/CSharp/CodeCompletion/NameContextTests.cs

@@ -94,6 +94,19 @@ namespace ICSharpCode.NRefactory.CSharp.CodeCompletion
 			Assert.IsTrue (provider == null || provider.Count == 0, "provider should be empty.");
 		}
 		
+		[Test()]
+		public void TestCatchExceptionName ()
+		{
+			var provider = CodeCompletionBugTests.CreateProvider (@"class MyClass {
+	void Test() 
+	{
+		$try {
+		} catch (Exception e$
+	}
+}");
+			Assert.IsTrue (provider == null || provider.Count == 0, "provider should be empty.");
+		}
+		
 	}
 }