Fix for summarization of generic function type aliases and support for resynthesizing.

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

Index: pkg/analyzer/test/src/summary/element_text.dart
diff --git a/pkg/analyzer/test/src/summary/element_text.dart b/pkg/analyzer/test/src/summary/element_text.dart
index ba31a09cd13506ad26bdd63c07926ea5f385e386..f0767f1c9708467ed51b78aef80f2f26859fdf69 100644
--- a/pkg/analyzer/test/src/summary/element_text.dart
+++ b/pkg/analyzer/test/src/summary/element_text.dart
@@ -442,13 +442,26 @@ class _ElementWriter {
     writeDocumentation(e);
     writeMetadata(e, '', '\n');
 
-    buffer.write('typedef ');
-    writeType2(e.returnType);
+    if (e is GenericTypeAliasElement) {
+      buffer.write('typedef ');
+      writeName(e);
+      writeTypeParameterElements(e.typeParameters);
 
-    writeName(e);
+      buffer.write(' = ');
 
-    writeTypeParameterElements(e.typeParameters);
-    writeParameterElements(e.parameters);
+      writeType(e.function.returnType);
+      buffer.write(' Function');
+      writeTypeParameterElements(e.function.typeParameters);
+      writeParameterElements(e.function.parameters);
+    } else {
+      buffer.write('typedef ');
+      writeType2(e.returnType);
+
+      writeName(e);
+
+      writeTypeParameterElements(e.typeParameters);
+      writeParameterElements(e.parameters);
+    }
 
     buffer.writeln(';');
   }