Fix hints in the analyzer package.

pkg/analyzer/test/generated/incremental_resolver_test.dart

Index: pkg/analyzer/test/generated/incremental_resolver_test.dart
diff --git a/pkg/analyzer/test/generated/incremental_resolver_test.dart b/pkg/analyzer/test/generated/incremental_resolver_test.dart
index 3c57a9797c9ae1df153551a34d4a542e61c24a99..e8349ffeb3c196cb09b4cd5c4267f0613a632f04 100644
--- a/pkg/analyzer/test/generated/incremental_resolver_test.dart
+++ b/pkg/analyzer/test/generated/incremental_resolver_test.dart
@@ -3807,7 +3807,7 @@ class ResolutionContextBuilderTest extends EngineTestCase {
     try {
       _scopeFor(AstFactory.identifier3("x"));
       fail("Expected AnalysisException");
-    } on AnalysisException catch (exception) {
+    } on AnalysisException {
       // Expected
     }
   }
@@ -3816,7 +3816,7 @@ class ResolutionContextBuilderTest extends EngineTestCase {
     try {
       _scopeFor(null);
       fail("Expected AnalysisException");
-    } on AnalysisException catch (exception) {
+    } on AnalysisException {
       // Expected
     }
   }
@@ -3825,7 +3825,7 @@ class ResolutionContextBuilderTest extends EngineTestCase {
     try {
       _scopeFor(AstFactory.compilationUnit());
       fail("Expected AnalysisException");
-    } on AnalysisException catch (exception) {
+    } on AnalysisException {
       // Expected
     }
   }