Check proper resynthesis of type parameters of generic methods.

pkg/analyzer/test/src/summary/resynthesize_test.dart

Index: pkg/analyzer/test/src/summary/resynthesize_test.dart
diff --git a/pkg/analyzer/test/src/summary/resynthesize_test.dart b/pkg/analyzer/test/src/summary/resynthesize_test.dart
index 9d90ee7061e184e12ab6e6957a9037ff74935ba6..9ad9882ca00f9edff73af94c1b8b36496696a216 100644
--- a/pkg/analyzer/test/src/summary/resynthesize_test.dart
+++ b/pkg/analyzer/test/src/summary/resynthesize_test.dart
@@ -337,6 +337,13 @@ class ResynthTest extends ResolverTestCase {
     compareTypes(
         resynthesized.returnType, original.returnType, '$desc return type');
     compareTypes(resynthesized.type, original.type, desc);
+    expect(resynthesized.typeParameters.length, original.typeParameters.length);
+    for (int i = 0; i < resynthesized.typeParameters.length; i++) {
+      compareTypeParameterElements(
+          resynthesized.typeParameters[i],
+          original.typeParameters[i],
+          '$desc type parameter ${original.typeParameters[i].name}');
+    }
   }
 
   void compareExportElements(ExportElementImpl resynthesized,
@@ -409,7 +416,6 @@ class ResynthTest extends ResolverTestCase {
       MethodElementImpl original, String desc) {
     // TODO(paulberry): do we need to deal with
     // MultiplyInheritedMethodElementImpl?
-    // TODO(paulberry): compare type parameters for generic methods.
     compareExecutableElements(resynthesized, original, desc);
   }