fix: Iterator returns object { file, suffix} not { name } (#585)

I wanted to use this exact script, however it didn't work as the iterator returns no object containing `name`.

Refer to coding in  `cds/lib/compile/to/edm.js`, specifically the function `function* _many` which `yields`:
```js
for (let file in all) yield [ callback(all[file]), { file, suffix } ]
```

node.js/cds-compile.md

@@ -192,7 +192,7 @@ Accepted `options` the same [as documented for `cds.compile.for.odata`](#for-oda
 * Either choose exactly one, for example, `{service:'Catalog'}`
 * Choose to return EDM objects for all, that means, `{service:'all'}`
 
-In case of the latter, a generator is returned that yields `[ edm, {name} ]` for each service.
+In case of the latter, a generator is returned that yields `[ edm, {file, suffix} ]` for each service.
 For example, use it as follows:
 
 ```js
@@ -203,7 +203,7 @@ console.log (edm)
 ```js
 // for all services
 let all = cds.compile.to.edm (csn, {service:'all'})
-for (let [edm,{name}] of all)  console.log (name,edm)
+for (let [edm,{file,suffix}] of all)  console.log (file,suffix,edm)
 ```