Replace comment style generic method syntax with real syntax (TBR)

pkg/analyzer/lib/src/kernel/ast_from_analyzer.dart

Index: pkg/analyzer/lib/src/kernel/ast_from_analyzer.dart
diff --git a/pkg/analyzer/lib/src/kernel/ast_from_analyzer.dart b/pkg/analyzer/lib/src/kernel/ast_from_analyzer.dart
index 492bb6fc0fde62ac2457972fd51e5c56259d155c..648db1754fe52c774de84234f5ad0ec15dc754a4 100644
--- a/pkg/analyzer/lib/src/kernel/ast_from_analyzer.dart
+++ b/pkg/analyzer/lib/src/kernel/ast_from_analyzer.dart
@@ -2298,9 +2298,8 @@ class TypeAnnotationBuilder extends GeneralizingAstVisitor<ast.DartType> {
     }
   }
 
-  static Iterable/*<E>*/ concatenate/*<E>*/(
-          Iterable/*<E>*/ x, Iterable/*<E>*/ y) =>
-      <Iterable<dynamic/*=E*/ >>[x, y].expand((z) => z);
+  static Iterable<E> concatenate<E>(Iterable<E> x, Iterable<E> y) =>
+      <Iterable<E>>[x, y].expand((z) => z);
 
   ast.TypeParameter convertTypeParameter(TypeParameterElement typeParameter,
       List<TypeParameterElement> boundVariables) {
@@ -3079,7 +3078,7 @@ Element desynthesizeSetter(Element element) {
   return element;
 }
 
-void sortAndRemoveDuplicates/*<T extends Comparable<T>>*/(List/*<T>*/ list) {
+void sortAndRemoveDuplicates<T extends Comparable<T>>(List<T> list) {
   list.sort();
   int deleted = 0;
   for (int i = 1; i < list.length; ++i) {