Fix for crash because of missing type of default generic function typed parameters.

pkg/analyzer/lib/src/generated/declaration_resolver.dart

Index: pkg/analyzer/lib/src/generated/declaration_resolver.dart
diff --git a/pkg/analyzer/lib/src/generated/declaration_resolver.dart b/pkg/analyzer/lib/src/generated/declaration_resolver.dart
index 2d87ede80d8148f4f43e880ed70034a504f31d47..c7370bc45a65cd18a8336cff03d4595cb5ef866d 100644
--- a/pkg/analyzer/lib/src/generated/declaration_resolver.dart
+++ b/pkg/analyzer/lib/src/generated/declaration_resolver.dart
@@ -129,6 +129,7 @@ class DeclarationResolver extends RecursiveAstVisitor<Object> {
         _match(normalParameter.identifier, _walker.getParameter());
     if (normalParameter is SimpleFormalParameterImpl) {
       normalParameter.element = element;
+      _setGenericFunctionType(normalParameter.type, element.type);
     }
     Expression defaultValue = node.defaultValue;
     if (defaultValue != null) {