Some components don't build with ngc

[alexeagle]

one example:

third_party/javascript/angular2_material/src/lib/slide-toggle/slide-toggle.ngfactory.ts:300:29: Supplied parameters do not match any signature of call target.
third_party/javascript/angular2_material/src/lib/slide-toggle/slide-toggle.ngfactory.ts:310:29: Supplied parameters do not match any signature of call target.

because _onDragStart does not accept parameters:
https://github.com/angular/material2/blob/d6f3e7773c0fcea008e48807617fa0e39263049e/src/lib/slide-toggle/slide-toggle.ts#L216
but is called with one parameter:
https://github.com/angular/material2/blob/d6f3e7773c0fcea008e48807617fa0e39263049e/src/lib/slide-toggle/slide-toggle.html#L7

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