Handle label declarations

Author: tannergooding

sources/ClangSharp.PInvokeGenerator/PInvokeGenerator.VisitDecl.cs

@@ -62,7 +62,11 @@ private void VisitDecl(Decl decl)
                     break;
                 }
 
-                // case CX_DeclKind.CX_DeclKind_Label:
+                case CX_DeclKind.CX_DeclKind_Label:
+                {
+                    VisitLabelDecl((LabelDecl)decl);
+                    break;
+                }
 
                 case CX_DeclKind.CX_DeclKind_Namespace:
                 {
@@ -861,6 +865,22 @@ private void VisitIndirectFieldDecl(IndirectFieldDecl indirectFieldDecl)
             _outputBuilder.WriteDivider();
         }
 
+        private void VisitLabelDecl(LabelDecl labelDecl)
+        {
+            var code = _outputBuilder.BeginCSharpCode();
+
+            code.WriteNewlineIfNeeded();
+            code.DecreaseIndentation();
+
+            code.WriteIndented(labelDecl.Name);
+            code.WriteLine(':');
+
+            code.IncreaseIndentation();
+            Visit(labelDecl.Stmt);
+
+            _outputBuilder.EndCSharpCode(code);
+        }
+
         private void VisitLinkageSpecDecl(LinkageSpecDecl linkageSpecDecl)
         {
             Visit(linkageSpecDecl.Decls);