Fix for types of function-typed parameters in reified type of MethodElement.

pkg/analyzer/lib/src/dart/element/element.dart

Index: pkg/analyzer/lib/src/dart/element/element.dart
diff --git a/pkg/analyzer/lib/src/dart/element/element.dart b/pkg/analyzer/lib/src/dart/element/element.dart
index 2da9fd6d06c337ba892382898451c93bfc9067a1..1986171013491f1f9f176447c1101a4d65c3aa01 100644
--- a/pkg/analyzer/lib/src/dart/element/element.dart
+++ b/pkg/analyzer/lib/src/dart/element/element.dart
@@ -6662,7 +6662,7 @@ class MethodElementImpl extends ExecutableElementImpl implements MethodElement {
     List<ParameterElement> covariantParameters = parameters.map((parameter) {
       DartType type = parameter.isCovariant ? objectType : parameter.type;
       return new ParameterElementImpl.synthetic(
-          parameter.name, objectType, parameter.parameterKind);
+          parameter.name, type, parameter.parameterKind);
     }).toList();
 
     return new FunctionElementImpl.synthetic(covariantParameters, returnType)