5b2fa3cfd3
This commit fixes a bug in the incremental rebuild engine of ngtsc, where if a component was removed from its NgModule, it would not be properly re-emitted. The bug stemmed from the fact that whether to emit a file was a decision based purely on the updated dependency graph, which captures the dependency structure of the rebuild program. This graph has no edge from the component to its former module (as it was removed, of course), so the compiler erroneously decides not to emit the component. The bug here is that the compiler does know, from the previous dependency graph, that the component file has logically changed, since its previous dependency (the module file) has changed. This information was not carried forward into the set of files which need to be emitted, because it was assumed that the updated dependency graph was a more accurate source of that information. With this commit, the set of files which need emit is pre-populated with the set of logically changed files, to cover edge cases like this. Fixes #34813 PR Close #34912
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