angular/di.dart — pull request #178 by vicb (2014-09-18 07:57:27+00:00)
Title: perf(Binding): saves a call to `reflector.parameterKeysFor()`

When toImplementation is specified, the class is instantiated via the
`new` operator and then the ctor must have no arguments. Then there is
no need to call `parameterKeysFor` as it will always return an empty
list.

@mhevery or @antingshen could you please review this PR.