Pete Bacon Darwin 72c4fda613 fix(ngcc): handle missing sources when flattening source-maps (#35718)
If a package has a source-map but it does not provide
the actual content of the sources, then the source-map
flattening was crashing.

Now we ignore such mappings that have no source
since we are not able to compute the merged
mapping if there is no source file.

Fixes #35709

PR Close #35718
2020-02-27 16:09:36 -05:00
..