In ngtsc, files loaded into the ts.Program have a "module name", set via
ts.SourceFile.moduleName, which ends up being written into an AMD module
name triple-slash directive in the generated .js file.
For generated shim files (ngfactories, ngsummaries) that are constructed
synthetically, there was previously no moduleName set, which caused some
issues with downstream tests.
This commit adds logic to compute and set moduleNames for both generated
ngfactory and ngsummary shims.
PR Close#27483
d553ec2f36