Make implicit package deps explicit. (#742)
Make implicit package deps explicit. (#742)

* Fix deprecated `getSdkDir` cli_util call.

* Revert "Fix deprecated `getSdkDir` cli_util call."

This reverts commit 829992bce32725ea06e17c653c7f55c645f1dc6b.

* Make implicit package deps, explicit.

dart-lang/linter,dart-lang/linter,alexeieleusis/dart-lang_linter,alexeieleusis/dart-lang_linter