Be clearer about "direct eval" (mdn#30252)

* Attempting to resolve issue mdn#30251

* Update files/en-us/web/javascript/reference/global_objects/eval/index.md

Co-authored-by: Joshua Chen <[email protected]>

---------

Co-authored-by: Joshua Chen <[email protected]>

files/en-us/web/javascript/reference/global_objects/eval/index.md

@@ -62,9 +62,12 @@ eval(String(expression)); // returns 4
 
 ### Direct and indirect eval
 
-There are two modes of `eval()` calls: _direct_ eval and _indirect_ eval. Direct eval only has one form: `eval( )` (the invoked function's name is `eval` and its value is the global `eval` function). Everything else, including invoking it via an aliased variable, via a member access or other expression, or through the optional chaining [`?.`](/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining) operator, is indirect.
+There are two modes of `eval()` calls: _direct_ eval and _indirect_ eval. Direct eval, as the name implies, refers to _directly_ calling the global `eval` function with `eval(...)`. Everything else, including invoking it via an aliased variable, via a member access or other expression, or through the optional chaining [`?.`](/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining) operator, is indirect.
 
 ```js
+// Direct call
+eval("x + y");
+
 // Indirect call using the comma operator to return eval
 (0, eval)("x + y");