When searching the typings program for a package for imports a distinction is drawn between missing entry-points and deep imports. Previously in the `DtsDependencyHost` these deep imports may be marked as missing if there was no typings file at the deep import path. Instead there may be a javascript file instead. In practice this means the import is "deep" and not "missing". Now the `DtsDependencyHost` will also consider `.js` files when checking for deep-imports, and it will also look inside `@types/...` for a suitable deep-imported typings file. Fixes #34720 PR Close #34695
Angular Compatibility Compiler (ngcc)
This compiler will convert node_modules compiled with ngc, into node_modules which
appear to have been compiled with ngtsc.
This conversion will allow such "legacy" packages to be used by the Ivy rendering engine.
Building
The project is built using Bazel:
yarn bazel build //packages/compiler-cli/ngcc
Unit Testing
The unit tests are built and run using Bazel:
yarn bazel test //packages/compiler-cli/ngcc/test
Integration Testing
There are tests that check the behavior of the overall executable:
yarn bazel test //packages/compiler-cli/ngcc/test:integration