Log compiler options

[kyliau]

Please see individual commit messages:

1. fix(language-service): reinstate overridden compiler option after change

   Currently the language service has to force compileNonExportedClasses to
   true to handle inline NgModules in tests, regardless of the value in user's
   tsconfig.json.

   However, the override is not reinstated after the compiler option changes
   (triggered by a change in tsconfig.json).
   This commit fixes the bug.

2. feat(language-service): log Angular compiler options

   This commit records the Angular compiler options in the log file to help
   debugging.

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/angular/angular/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• angular.io application / infrastructure changes
• Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

Other information

[angular-automatic-lock-bot]

This issue has been automatically locked due to inactivity.
Please file a new issue if you are encountering a similar or related problem.

Read more about our automatic conversation locking policy.

_{This action has been performed automatically by a bot.}