This change allows the example writer to add doc-region annotations to
files that do not allow comments. This is done by creating a clone of the
file and adding `.annotated` to the file name. This new file can contain
inline `// ...` comments that can be used to annotate the doc regions.
Example:
**package.json**
```
{
"name": "angular.io",
"version": "0.0.0",
"main": "index.js",
"repository": "git@github.com:angular/angular.git",
"author": "Angular",
"license": "MIT",
"private": true,
}
````
**package.json.annotated**
```
{
"name": "angular.io",
// #docregion version
"version": "0.0.0",
// #enddocregion
"main": "index.js",
"repository": "git@github.com:angular/angular.git",
"author": "Angular",
"license": "MIT",
"private": true,
}
````
This region can then be referenced in examples just like any other doc region:
```
{@example 'package.json' region="version"}
```