[Resolver] Fixed using statement.

ICSharpCode.NRefactory.CSharp/Resolver/ResolveVisitor.cs

@@ -2823,6 +2823,9 @@ namespace ICSharpCode.NRefactory.CSharp.Resolver
 		
 		ResolveResult IAstVisitor<ResolveResult>.VisitUnsafeStatement(UnsafeStatement unsafeStatement)
 		{
+			resolver = resolver.PushBlock();
+			ScanChildren(unsafeStatement);
+			resolver = resolver.PopBlock();
 			return voidResult;
 		}
 		#endregion

ICSharpCode.NRefactory.Tests/CSharp/Resolver/NameLookupTests.cs

@@ -970,5 +970,24 @@ class MainClass : Test
 			Assert.IsFalse(result.IsError);
 			Assert.AreEqual("Test.Foo.Bar", result.Member.FullName);
 		}
+
+		[Test]
+		public void LocalInsideUnsafeBlock()
+		{
+			string program = @"class A {
+	void Method() {
+		unsafe {
+			string a;
+			string b = $a$;
+		}
+	}
+}
+";
+			LocalResolveResult result = Resolve<LocalResolveResult>(program);
+			Assert.AreEqual("a", result.Variable.Name);
+			Assert.IsFalse(result.IsParameter);
+			
+			Assert.AreEqual("System.String", result.Type.FullName);
+		}
 	}
 }