Add a quick fix for missing new (issue 30077)

pkg/analysis_server/lib/src/services/correction/fix_internal.dart

Index: pkg/analysis_server/lib/src/services/correction/fix_internal.dart
diff --git a/pkg/analysis_server/lib/src/services/correction/fix_internal.dart b/pkg/analysis_server/lib/src/services/correction/fix_internal.dart
index c2dfd1b7e23ed19bf6f355a9a6f0c61fd7fe79d3..1052c9dd0740725d1b136339385a4de8700467cb 100644
--- a/pkg/analysis_server/lib/src/services/correction/fix_internal.dart
+++ b/pkg/analysis_server/lib/src/services/correction/fix_internal.dart
@@ -348,6 +348,9 @@ class FixProcessor {
       await _addFix_importLibrary_withTopLevelVariable();
       await _addFix_createLocalVariable();
     }
+    if (errorCode == StaticTypeWarningCode.UNDEFINED_METHOD_WITH_CONSTRUCTOR) {
+      await _addFix_undefinedMethodWithContructor();
+    }
     if (errorCode == StaticTypeWarningCode.ILLEGAL_ASYNC_RETURN_TYPE) {
       await _addFix_illegalAsyncReturnType();
     }
@@ -2522,6 +2525,20 @@ class FixProcessor {
     }
   }
 
+  Future<Null> _addFix_undefinedMethodWithContructor() async {
+    if (node is SimpleIdentifier && node.parent is MethodInvocation) {
+      DartChangeBuilder changeBuilder = new DartChangeBuilder(session);
+      await changeBuilder.addFileEdit(file, (DartFileEditBuilder builder) {
+        builder.addSimpleInsertion(node.parent.offset, 'new ');
+      });
+      _addFixFromBuilder(
+          changeBuilder, DartFixKind.INVOKE_CONSTRUCTOR_USING_NEW);
+      // TODO(brianwilkerson) Figure out whether the constructor is a `const`
+      // constructor and all of the parameters are constant expressions, and
+      // suggest inserting 'const ' if so.
+    }
+  }
+
   /**
    * Here we handle cases when a constructors does not initialize all of the
    * final fields.