Added missing symbol kinds and attach to capabilities

Author: david-driscoll

src/Protocol/Client/Capabilities/CompletionCapability.cs

@@ -1,4 +1,5 @@
 using Newtonsoft.Json;
+using OmniSharp.Extensions.LanguageServer.Protocol.Models;
 
 namespace OmniSharp.Extensions.LanguageServer.Protocol.Client.Capabilities
 {
@@ -11,10 +12,33 @@ public class CompletionCapability : DynamicCapability, ConnectedCapability<IComp
         [Optional]
         public CompletionItemCapability CompletionItem { get; set; }
 
+        /// <summary>
+        /// Specific capabilities for the `CompletionItemKind` in the `textDocument/completion` request.
+        /// </summary>
+        [Optional]
+        public CompletionItemKindCapability SymbolKind { get; set; }
+
         /// <summary>
         ///  The client supports to send additional context information for a `textDocument/completion` request.
         /// </summary>
         [Optional]
         public bool ContextSupport { get; set; }
     }
+
+
+    public class CompletionItemKindCapability
+    {
+        /// <summary>
+        /// The completion item kind values the client supports. When this
+        /// property exists the client also guarantees that it will
+        /// handle values outside its set gracefully and falls back
+        /// to a default value when unknown.
+        ///
+        /// If this property is not present the client only supports
+        /// the completion items kinds from `Text` to `Reference` as defined in
+        /// the initial version of the protocol.
+        /// </summary>
+        [Optional]
+        public Container<CompletionItemKind> ValueSet { get; set; }
+    }
 }

src/Protocol/Client/Capabilities/DocumentSymbolCapability.cs

@@ -1,4 +1,11 @@
 namespace OmniSharp.Extensions.LanguageServer.Protocol.Client.Capabilities
 {
-    public class DocumentSymbolCapability : DynamicCapability, ConnectedCapability<IDocumentSymbolHandler> { }
+    public class DocumentSymbolCapability : DynamicCapability, ConnectedCapability<IDocumentSymbolHandler> {
+
+        /// <summary>
+        /// Specific capabilities for the `SymbolKind` in the `textDocument/symbol` request.
+        /// </summary>
+        [Optional]
+        public SymbolKindCapability SymbolKind { get; set; }
+    }
 }

src/Protocol/Client/Capabilities/WorkspaceSymbolCapability.cs

@@ -1,4 +1,29 @@
+using OmniSharp.Extensions.LanguageServer.Protocol.Models;
+
 namespace OmniSharp.Extensions.LanguageServer.Protocol.Client.Capabilities
 {
-    public class WorkspaceSymbolCapability : DynamicCapability, ConnectedCapability<IWorkspaceSymbolsHandler> { }
+    public class WorkspaceSymbolCapability : DynamicCapability, ConnectedCapability<IWorkspaceSymbolsHandler>
+    {
+        /// <summary>
+        /// Specific capabilities for the `SymbolKind` in the `workspace/symbol` request.
+        /// </summary>
+        [Optional]
+        public SymbolKindCapability SymbolKind { get; set; }
+    }
+
+    public class SymbolKindCapability
+    {
+        /// <summary>
+        /// The symbol kind values the client supports. When this
+        /// property exists the client also guarantees that it will
+        /// handle values outside its set gracefully and falls back
+        /// to a default value when unknown.
+        ///
+        /// If this property is not present the client only supports
+        /// the symbol kinds from `File` to `Array` as defined in
+        /// the initial version of the protocol.
+        /// </summary>
+        [Optional]
+        public Container<SymbolKind> ValueSet { get; set; }
+    }
 }

src/Protocol/Models/CompletionItemKind.cs

@@ -26,5 +26,12 @@ public enum CompletionItemKind
         Color = 16,
         File = 17,
         Reference = 18,
+        Folder = 19,
+        EnumMember = 20,
+        Constant = 21,
+        Struct = 22,
+        Event = 23,
+        Operator = 24,
+        TypeParameter = 25,
     }
 }

src/Protocol/Models/SymbolKind.cs

@@ -27,5 +27,13 @@ public enum SymbolKind
         Number = 16,
         Boolean = 17,
         Array = 18,
+        Object = 19,
+        Key = 20,
+        Null = 21,
+        EnumMember = 22,
+        Struct = 23,
+        Event = 24,
+        Operator = 25,
+        TypeParameter = 26,
     }
-}
+}