update Generate Variable tests to pass in..

.. new use var options.

src/EditorFeatures/CSharpTest/Diagnostics/GenerateVariable/GenerateVariableTests.cs

@@ -4,6 +4,7 @@
 using System.Collections.Generic;
 using System.Threading.Tasks;
 using Microsoft.CodeAnalysis.CodeFixes;
+using Microsoft.CodeAnalysis.CodeStyle;
 using Microsoft.CodeAnalysis.CSharp.CodeFixes.GenerateVariable;
 using Microsoft.CodeAnalysis.CSharp.CodeStyle;
 using Microsoft.CodeAnalysis.Diagnostics;
@@ -21,6 +22,21 @@ public class GenerateVariableTests : AbstractCSharpDiagnosticProviderBasedUserDi
                 null, new GenerateVariableCodeFixProvider());
         }
 
+        private readonly SimpleCodeStyleOption onWithInfo = new SimpleCodeStyleOption(true, NotificationOption.Info);
+
+        // specify all options explicitly to override defaults.
+        private IDictionary<OptionKey, object> ImplicitTypingEverywhere() =>
+            OptionSet(CSharpCodeStyleOptions.UseImplicitTypeWherePossible, onWithInfo)
+            .With(CSharpCodeStyleOptions.UseImplicitTypeWhereApparent, onWithInfo)
+            .With(CSharpCodeStyleOptions.UseImplicitTypeForIntrinsicTypes, onWithInfo);
+
+        internal IDictionary<OptionKey, object> OptionSet(OptionKey option, object value)
+        {
+            var options = new Dictionary<OptionKey, object>();
+            options.Add(option, value);
+            return options;
+        }
+
         [Fact, Trait(Traits.Feature, Traits.Features.CodeActionsGenerateVariable)]
         public async Task TestSimpleLowercaseIdentifier1()
         {
@@ -1771,7 +1787,7 @@ public async Task TestGenerateFromAssign1()
             await TestAsync(
 @"class Program { void Main ( ) { [|undefined|] = 1 ; } } ",
 @"class Program { void Main ( ) { var undefined = 1 ; } } ",
-index: 2);
+index: 2, options: ImplicitTypingEverywhere());
         }
 
         [Fact, Trait(Traits.Feature, Traits.Features.CodeActionsGenerateVariable)]
@@ -1853,7 +1869,7 @@ void Foo()
 #line default
 #line hidden
 }
-");
+", options: ImplicitTypingEverywhere());
         }
 
         [WorkItem(546027, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/546027")]