Merge pull request #3997 from brettfo/arg-completion-tooltip

don't escape method names in signature help tool tips

src/EditorFeatures/VisualBasic/SignatureHelp/InvocationExpressionSignatureHelpProvider.MemberGroup.vb

@@ -82,6 +82,7 @@ Namespace Microsoft.CodeAnalysis.Editor.VisualBasic.SignatureHelp
             Dim format = MinimallyQualifiedWithoutParametersFormat
             format = format.RemoveMemberOptions(SymbolDisplayMemberOptions.IncludeType Or SymbolDisplayMemberOptions.IncludeContainingType)
             format = format.RemoveKindOptions(SymbolDisplayKindOptions.IncludeMemberKeyword)
+            format = format.WithMiscellaneousOptions(format.MiscellaneousOptions And (Not SymbolDisplayMiscellaneousOptions.EscapeKeywordIdentifiers))
 
             result.AddRange(symbol.ToMinimalDisplayParts(semanticModel, position, format))
             result.Add(Punctuation(SyntaxKind.OpenParenToken))

src/EditorFeatures/VisualBasicTest/SignatureHelp/InvocationExpressionSignatureHelpProviderTests.vb

@@ -1835,5 +1835,19 @@ End Class
 
             Test(markup, expectedOrderedItems)
         End Sub
+
+        <WorkItem(3537, "https://github.com/dotnet/roslyn/issues/3537")>
+        <Fact, Trait(Traits.Feature, Traits.Features.SignatureHelp)>
+        Public Sub TestEscapedIdentifiers()
+            Dim markup = "
+Class C
+    Sub [Next]()
+        Dim x As New C
+        x.Next($$)
+    End Sub
+End Class
+"
+            Test(markup, SpecializedCollections.SingletonEnumerable(New SignatureHelpTestItem("C.Next()", String.Empty)))
+        End Sub
     End Class
 End Namespace