Check in codegen test expectations.

test/codegen/expect/language/operator_negate_and_method_negate_test.js

Index: test/codegen/expect/language/operator_negate_and_method_negate_test.js
diff --git a/test/codegen/expect/language/operator_negate_and_method_negate_test.js b/test/codegen/expect/language/operator_negate_and_method_negate_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..e35cb535ece708e513d889fa4938388ce2830b27
--- /dev/null
+++ b/test/codegen/expect/language/operator_negate_and_method_negate_test.js
@@ -0,0 +1,33 @@
+dart_library.library('language/operator_negate_and_method_negate_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__operator_negate_and_method_negate_test(exports, dart_sdk, expect) {
+  'use strict';
+  const core = dart_sdk.core;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const expect$ = expect.expect;
+  const operator_negate_and_method_negate_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  operator_negate_and_method_negate_test.Foo = class Foo extends core.Object {
+    ['unary-']() {
+      return 42;
+    }
+    negate() {
+      return 87;
+    }
+  };
+  dart.setSignature(operator_negate_and_method_negate_test.Foo, {
+    methods: () => ({
+      'unary-': dart.definiteFunctionType(dart.dynamic, []),
+      negate: dart.definiteFunctionType(dart.dynamic, [])
+    })
+  });
+  operator_negate_and_method_negate_test.main = function() {
+    expect$.Expect.equals(42, new operator_negate_and_method_negate_test.Foo()['unary-']());
+    expect$.Expect.equals(87, new operator_negate_and_method_negate_test.Foo().negate());
+  };
+  dart.fn(operator_negate_and_method_negate_test.main, VoidTodynamic());
+  // Exports:
+  exports.operator_negate_and_method_negate_test = operator_negate_and_method_negate_test;
+});