Pete Bacon Darwin 3158858059 fix(compiler-cli): do not duplicate repeated source-files in rendered source-maps (#40237)
When a source-map/source-file tree has nodes that refer to the same file, the
flattened source-map rendering was those files multiple times, rather than
consolidating them into a single source-map source.

PR Close #40237
2021-01-07 13:12:53 -08:00
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