[Discussion] Run install @types quick fix with --no-shrinkwrap

[mjbvz]

From microsoft/vscode#37217

Problem
The install quick fix currently does a normal npm install. For cases where the version of npm used to manage a project is different than the version of npm found in the environment—npm 4 and npm 5 for example—this quick fix can also unexpectedly update the npm-shrinkwrap.json.

Possible solution would be to run the @types install with --no-shrinkwrap

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Moving this issue over in case any one else want to weigh in here. We run into this in the VS Code codebase itself because we don't yet support npm 5

Should wait on #20619 because most users will want npm's default behavior.

[mhegazy]

#20619 is in now. we would be accepting a PR for adding configuration support for the quick fix.