Log full backtrace on diagnostic and formatting crashes

Author: vinistock

lib/ruby_lsp/server.rb

@@ -674,6 +674,10 @@ def text_document_formatting(message)
         "Formatting error: #{error.message}",
         type: Constant::MessageType::ERROR,
       ))
+      send_message(Notification.window_log_message(
+        "Formatting failed with\r\n: #{error.full_message}",
+        type: Constant::MessageType::ERROR,
+      ))
       send_empty_response(message[:id])
     end
 
@@ -919,6 +923,10 @@ def text_document_diagnostic(message)
         "Error running diagnostics: #{error.message}",
         type: Constant::MessageType::ERROR,
       ))
+      send_message(Notification.window_log_message(
+        "Diagnostics failed with\r\n: #{error.full_message}",
+        type: Constant::MessageType::ERROR,
+      ))
       send_empty_response(message[:id])
     end