Enforce prefer_is_empty.

CHANGELOG.md

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1515ae9..681097a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.3.0
+
+- Enforce `prefer_is_empty`.
+
 ## 1.2.0
 
 - Enforce `unawaited_futures`. Stop enforcing `control_flow_in_finally` and

lib/analysis_options.yaml

diff --git a/lib/analysis_options.yaml b/lib/analysis_options.yaml
index 012a30a..5ca354d 100644
--- a/lib/analysis_options.yaml
+++ b/lib/analysis_options.yaml
@@ -14,6 +14,7 @@
     - no_duplicate_case_values
     - prefer_contains
     - prefer_equal_for_default_values
+    - prefer_is_empty
     - prefer_is_not_empty
     - recursive_getters
     - unrelated_type_equality_checks

pubspec.yaml

diff --git a/pubspec.yaml b/pubspec.yaml
index 5099e5e..217a638 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: pedantic
-version: 1.2.0
+version: 1.3.0
 description: How to get the most value from Dart static analysis.
 author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/dart-lang/pedantic