Stop running pub get at gclient sync time and fix build bugs

mojo/public/dart/third_party/analyzer/CHANGELOG.md

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+## 0.26.1+2
+
+* Extension point for WorkManagerFactory(s).
+* Resolve enum documentation comments.
+* Fix display of parameter lists in servers Element structure (issue 24194)
+* Band-aid fix for issue #24191.
+
+## 0.26.1+1
+
+* Removed a warning about importing unnamed libraries
+* Fix handling of empty URIs in `.packages` files (issue 24126)
+
+## 0.26.1
+
+* Fix line starts in multiline comments (issue 23919).
+* Various small fixes to Windows path handling.
+* Update LineInfo computation during incremental resolution.
+* Make exclude list apply to contexts (issue 23941).
+* Fix type propagation for asynchronous for-in statements.
+* Fix ToStringVisitor for external functions (issue 23968).
+* Fix sorting of compilation unit members.
+* Add forwarding for DefaultFormalParameter metadata.
+* Fix most implementations of UriResolver.restoreAbsolute.
+* Disable dart2js hints by default.
+* Support older SDKs (Dart 1.11).
+
+## 0.26.0
+
+* Add hook for listening to implicitly analyzed files
+* Add a PathFilter and AnalysisOptionsProvider utility classes to aid
+  clients in excluding files from analysis when directed to do so by an
+  options file.
+* API change: `UriResolver.resolveUri(..)` now takes an optional `actualUri`.
+* Change `ResolutionCopier.visitAwaitExpression` to copy *Type fields.
+* Fix highlight range for missing enum constant in switch (issue 23904).
+* Fix analyzer's treatment of `ClassName?.staticMember` to match spec.
+* Implement DEP 34 (less restricted mixins).
+* Fix some implementations of `UriResolver.resolveUri(..)` that did not
+  properly handle the new `actualUri` argument.
+
+## 0.25.2
+
+* Requires Dart SDK 1.12-dev or greater
+* Enable null-aware operators (DEP 9) by default.
+* Generic method support in the element model.
+
+## 0.25.2-alpha.1
+
+* `dart:sdk` extension `.sdkext` changed to `_sdkext` (to play nicer with pub).
+
+## 0.25.2-alpha.0
+
+* Initial support for analyzing `dart:sdk` extensions from `.sdkext`. 
+
+## 0.25.1
+
+* (Internal) code reorganization to address analysis warnings due to SDK reorg.
+* First steps towards `.packages` support.
+
+## 0.25.0
+
+* Commandline interface moved to dedicated `analyzer_cli` package. Files moved:
+  * `bin/analyzer.dart`
+  * `lib/options.dart`
+  * `lib/src/analyzer_impl.dart`
+  * `lib/src/error_formatter.dart`
+* Removed dependency on the `args` package.
+
+## 0.22.1
+
+* Changes in the async/await support.
+
+
+## 0.22.0
+
+  New API:
+  
+* `Source.uri` added.
+
+  Breaking changes:
+
+* `DartSdk.fromEncoding` replaced with `fromFileUri`.
+* `Source.resolveRelative` replaced with `resolveRelativeUri`.