Fix test name.

src/EditorFeatures/CSharpTest/InlineDeclaration/CSharpInlineDeclarationTests.cs

@@ -314,7 +314,7 @@ void M()
         }
 
         [Fact, Trait(Traits.Feature, Traits.Features.CodeActionsInlineDeclaration)]
-        public async Task TestAvailabeInNestedBlock()
+        public async Task TestAvailableInNestedBlock()
         {
             await TestAsync(
 @"class C