Merge pull request #1680 from dart-lang/analyzer_0.38.0

bump to analyzer 0.38.0
diff --git a/pubspec.yaml b/pubspec.yaml
index 92ac662..6a098a9 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -13,7 +13,7 @@
   sdk: '>=2.2.0 <3.0.0'
 
 dependencies:
-  analyzer: ^0.37.0
+  analyzer: ^0.38.0
   args: '>=1.4.0 <2.0.0'
   glob: ^1.0.3
   meta: ^1.0.2