Intern and leadfoot cause error TS2307: Cannot find module 'dojo/Promise'.

This definitely used to work, so I'm not sure what is going on here. I have referenced the typings for dojo & intern in a tsd.d.ts which looks like this:

```
///
///

///
///
///
///
///
///
///

///
///
```
Whenever I build I get the following error
```
C:\temp\InternIssue>node "C:\temp\InternIssue\node_modules\typescript\bin\tsc"
node_modules/dojo-typings/custom/intern/intern.d.ts(7,27): error TS2307: Cannot find module 'dojo/Promise'.
node_modules/dojo-typings/custom/intern/intern.d.ts(48,27): error TS2307: Cannot find module 'dojo/Promise'.
node_modules/dojo-typings/custom/intern/intern.d.ts(73,27): error TS2307: Cannot find module 'dojo/Promise'.
node_modules/dojo-typings/custom/intern/intern.d.ts(129,27): error TS2307: Cannot find module 'dojo/Promise'.
node_modules/dojo-typings/custom/intern/intern.d.ts(144,27): error TS2307: Cannot find module 'dojo/Promise'.
node_modules/dojo-typings/custom/intern/intern.d.ts(277,27): error TS2307: Cannot find module 'dojo/Promise'.
node_modules/dojo-typings/custom/leadfoot/leadfoot.d.ts(358,27): error TS2307: Cannot find module 'dojo/Promise'.
node_modules/dojo-typings/custom/leadfoot/leadfoot.d.ts(422,27): error TS2307: Cannot find module 'dojo/Promise'.
node_modules/dojo-typings/custom/leadfoot/leadfoot.d.ts(1664,27): error TS2307: Cannot find module 'dojo/Promise'.
node_modules/dojo-typings/custom/leadfoot/leadfoot.d.ts(2237,27): error TS2307: Cannot find module 'dojo/Promise'.
node_modules/dojo-typings/custom/leadfoot/leadfoot.d.ts(2366,27): error TS2307: Cannot find module 'dojo/Promise'.

C:\temp\InternIssue>node "C:\temp\InternIssue\node_modules\typescript\bin\tsc" -v
Version 2.2.2
```

I rolled back to 2.2.2 because I know it used to work back then. My tsconfig looks like this:

```
{
"compileOnSave": true,
"compilerOptions": {
"baseUrl": ".",
"paths": {
},
"module": "amd",
"moduleResolution": "node",
"target": "es5",
"noImplicitAny": false,
"sourceMap": true
}
}
```