Merge pull request #16087 from der-teufel-programming/master

autodoc: Fix rendering of function arguments named `_`

lib/docs/main.js

@@ -2375,6 +2375,9 @@ const NAV_MODES = {
                   if (paramName != null) {
                     // skip if it matches the type name
                     if (!shouldSkipParamName(paramValue, paramName)) {
+                      if (paramName === "") {
+                        paramName = "_";
+                      }
                       payloadHtml += paramName + ": ";
                     }
                   }