Update example analysis-options.yaml

example/analysis-options.yaml

@@ -3,10 +3,5 @@
 
 # analysis_options.yaml docs: https://www.dartlang.org/guides/language/analysis-options
 analyzer:
-  # Strong mode is required. Applies to the current project.
-  strong-mode:
-    # When compiling to JS, both implicit options apply to the current 
-    # project and all dependencies. They are useful to find possible 
-    # Type fixes or areas for explicit typing.
-    implicit-casts: false
-    implicit-dynamic: true
+  language:
+    strict-casts: true