Creating CS8515 (#32010)

* Removing CS8515

* Adding 8515 to toc.yml

* Adding Cs8515 compiler message

* Apply suggestions from code review

Co-authored-by: Bill Wagner <wiwagn@microsoft.com>

Author: balazsberes

docs/csharp/language-reference/compiler-messages/cs8515.md

@@ -0,0 +1,51 @@
+---
+description: "Compiler Error CS8515"
+title: "Compiler Error CS8515"
+ms.date: 10/24/2022
+f1_keywords:
+  - "CS8515"
+helpviewer_keywords:
+  - "CS8515"
+---
+# Compiler Error CS8515
+
+Parentheses are required around the switch governing expression.
+
+## Example
+
+ The following samples generates CS8515:
+
+Missing parentheses: `(`  `)`:
+
+```csharp
+// CS8515.cs
+int x = 5;
+switch x
+{
+    case 5:
+    break;
+}
+```
+
+Missing curly brackets: `{`  `}`:
+
+```csharp
+// CS8515.cs
+int x = 5;
+switch (x)
+    case 5:
+    break;
+```
+
+## The correct format
+
+```csharp
+int x = 5;
+switch (x)
+{
+    case 5:
+    break;
+}
+```
+
+For more information, see [Switch](../statements/selection-statements.md#the-switch-statement)

docs/csharp/language-reference/compiler-messages/toc.yml

@@ -1709,6 +1709,8 @@ items:
     href: cs8803.md
   - name: CS8812
     href: cs8812.md
+  - name: CS8515
+    href: cs8515.md
   - name: CS9043
     href: cs9043.md
   - name: CS9050

docs/csharp/misc/sorry-we-don-t-have-specifics-on-this-csharp-error.md

@@ -436,7 +436,6 @@ f1_keywords:
   - "CS8512"
   - "CS8513"
   - "CS8514"
-  - "CS8515"
   - "CS8516"
   - "CS8517"
   - "CS8518"