PR #18520 was accidentally merged into 4.3.x, which uses a different
location for building `tsc-wrapped`. This commit reverts the changes
from #18520 that were not compatible with 4.3.x.
This commit also updates the version of `@angular/cli` used for docs examples.
The previous (transient) dependency `@ngtools/webpack` was not compatible with
`@angular/compiler-cli@>=5` and was breaking when running against the local
builds (currently at 5.0.0-beta.2). The version of `@ngtools/webpack` used by
the latest `@angular/cli` version is compatible with `@angular/compiler-cli@5`.
