Fixed SD2-1393: Implicitly typed variable declaration without new keyword throws exception

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@3013 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/Main/Base/Test/NRefactoryResolverTests.cs

@@ -2229,5 +2229,19 @@ class TestClass {
 			var lrr = Resolve<LocalResolveResult>(program, "i", 5, 5, ExpressionContext.Default);
 			Assert.AreEqual("System.Int32", lrr.ResolvedType.DotNetName);
 		}
+		
+		[Test]
+		public void InvalidAnonymousTypeDeclaration()
+		{
+			// see SD2-1393
+			string program = @"using System;
+class TestClass {
+	static void Main() {
+			var contact = {id = 54321};
+		
+		} }";
+			var lrr = Resolve<LocalResolveResult>(program, "contact", 5);
+			Assert.AreEqual("?", lrr.ResolvedType.DotNetName);
+		}
 	}
 }

src/Main/ICSharpCode.SharpDevelop.Dom/Project/Src/NRefactoryResolver/ResolveVisitor.cs

@@ -173,6 +173,8 @@ namespace ICSharpCode.SharpDevelop.Dom.NRefactoryResolver
 				IReturnType rt = ResolveType(collectionInitializerExpression.CreateExpressions[i]);
 				combinedRT = MemberLookupHelper.GetCommonType(resolver.ProjectContent, combinedRT, rt);
 			}
+			if (combinedRT == null)
+				return null;
 			return CreateResolveResult(new ArrayReturnType(resolver.ProjectContent, combinedRT, 1));
 		}