Create 0001-ambiguous-call-site.patch (#19647)

Author: ViktorHofer

src/SourceBuild/patches/roslyn/0001-ambiguous-call-site.patch

@@ -0,0 +1,22 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Viktor Hofer <viktor.hofer@microsoft.com>
+Date: Thu, 2 May 2024 17:22:41 +0000
+Subject: [PATCH] Avoid ambiguous call site
+
+---
+ .../Workspace/Core/CodeGeneration/CodeGenerationHelpers.cs      | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/Workspaces/SharedUtilitiesAndExtensions/Workspace/Core/CodeGeneration/CodeGenerationHelpers.cs b/src/Workspaces/SharedUtilitiesAndExtensions/Workspace/Core/CodeGeneration/CodeGenerationHelpers.cs
+index 3839eb370eb..8d272db6b1b 100644
+--- a/src/Workspaces/SharedUtilitiesAndExtensions/Workspace/Core/CodeGeneration/CodeGenerationHelpers.cs
++++ b/src/Workspaces/SharedUtilitiesAndExtensions/Workspace/Core/CodeGeneration/CodeGenerationHelpers.cs
+@@ -71,7 +71,7 @@ internal static class CodeGenerationHelpers
+                 break;
+             }
+
+-            name = string.Join(".", [.. names]);
++            name = string.Join(".", names);
+         }
+         else
+         {