Fix StatementBuilder incorrectly building infinite loops.

ICSharpCode.Decompiler/CSharp/StatementBuilder.cs

@@ -282,7 +282,13 @@ namespace ICSharpCode.Decompiler.CSharp
 			}
 			string label;
 			if (endContainerLabels.TryGetValue(container, out label)) {
+				if (isLoop) {
+					blockStatement.Add(new ContinueStatement());
+				}
 				blockStatement.Add(new LabelStatement { Label = label });
+				if (isLoop) {
+					blockStatement.Add(new BreakStatement());
+				}
 			}
 			return blockStatement;
 		}

ICSharpCode.Decompiler/Tests/RoundtripAssembly.cs

@@ -44,11 +44,7 @@ namespace ICSharpCode.Decompiler.Tests
 		[Test]
 		public void NewtonsoftJson_net40()
 		{
-			try {
-				RunWithTest("Newtonsoft.Json-net40", "Newtonsoft.Json.dll", "Newtonsoft.Json.Tests.dll");
-			} catch (TestRunFailedException ex) {
-				Assert.Ignore(ex.Message);
-			}
+			RunWithTest("Newtonsoft.Json-net40", "Newtonsoft.Json.dll", "Newtonsoft.Json.Tests.dll");
 		}
 		
 		[Test]