Pull args, intl, logging, shelf, and source_maps out of the SDK.

pkg/source_maps/CHANGELOG.md

Index: pkg/source_maps/CHANGELOG.md
diff --git a/pkg/source_maps/CHANGELOG.md b/pkg/source_maps/CHANGELOG.md
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-## 0.10.0+1
-
-* Remove an unnecessary warning printed when the "file" field is missing from a
-  Json formatted source map. This field is optional and its absence is not
-  unusual.
-
-## 0.10.0
-
-* Remove the `Span`, `Location` and `SourceFile` classes. Use the
-  corresponding `source_span` classes instead.
-
-## 0.9.4
-
-* Update `SpanFormatException` with `source` and `offset`.
-
-* All methods that take `Span`s, `Location`s, and `SourceFile`s as inputs now
-  also accept the corresponding `source_span` classes as well. Using the old
-  classes is now deprecated and will be unsupported in version 0.10.0.
-
-## 0.9.3
-
-* Support writing SingleMapping objects to source map version 3 format.
-* Support the `sourceRoot` field in the SingleMapping class.
-* Support updating the `targetUrl` field in the SingleMapping class.
-
-## 0.9.2+2
-
-* Fix a bug in `FixedSpan.getLocationMessage`.
-
-## 0.9.2+1
-
-* Minor readability improvements to `FixedSpan.getLocationMessage` and
-  `SpanException.toString`.
-
-## 0.9.2
-
-* Add `SpanException` and `SpanFormatException` classes.
-
-## 0.9.1
-
-* Support unmapped areas in source maps.
-
-* Increase the readability of location messages.