Serialize typedef parameters (including function typed ones) to Kernel and use it to resynthesize t…

pkg/kernel/lib/binary/ast_to_binary.dart

Index: pkg/kernel/lib/binary/ast_to_binary.dart
diff --git a/pkg/kernel/lib/binary/ast_to_binary.dart b/pkg/kernel/lib/binary/ast_to_binary.dart
index 0462336e05b0bd3a806cfd3a163f2c494ce6672b..299ff77676e4fe1d562bab1fbf5214f4c29acb84 100644
--- a/pkg/kernel/lib/binary/ast_to_binary.dart
+++ b/pkg/kernel/lib/binary/ast_to_binary.dart
@@ -344,14 +344,19 @@ class BinaryPrinter extends Visitor {
   }
 
   void visitTypedef(Typedef node) {
+    _variableIndexer = new VariableIndexer();
     writeCanonicalNameReference(getCanonicalNameOfTypedef(node));
     writeOffset(node.fileOffset);
     writeStringReference(node.name);
     writeUriReference(node.fileUri ?? '');
     _typeParameterIndexer.enter(node.typeParameters);
     writeNodeList(node.typeParameters);
+    writeUInt30(node.requiredParameterCount);
+    writeVariableDeclarationList(node.positionalParameters);
+    writeVariableDeclarationList(node.namedParameters);
     writeNode(node.type);
     _typeParameterIndexer.exit(node.typeParameters);
+    _variableIndexer = null;
   }
 
   void writeAnnotation(Expression annotation) {