Check in codegen test expectations.

test/codegen/expect/language/parameter_name_conflict_test.js

Index: test/codegen/expect/language/parameter_name_conflict_test.js
diff --git a/test/codegen/expect/language/parameter_name_conflict_test.js b/test/codegen/expect/language/parameter_name_conflict_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..87c32fcc52a39741169659fece9ca1cdc3e22f70
--- /dev/null
+++ b/test/codegen/expect/language/parameter_name_conflict_test.js
@@ -0,0 +1,40 @@
+dart_library.library('language/parameter_name_conflict_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__parameter_name_conflict_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 parameter_name_conflict_test = Object.create(null);
+  let dynamicTodynamic = () => (dynamicTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [dart.dynamic])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  parameter_name_conflict_test.foo = function(t0) {
+    let a = t0, b = parameter_name_conflict_test.baz(), c = parameter_name_conflict_test.bar();
+    if (dart.equals(t0, 'foo')) {
+      let tmp = c;
+      c = b;
+      b = tmp;
+    }
+    expect$.Expect.equals('foo', a);
+    expect$.Expect.equals('foo', t0);
+    expect$.Expect.equals('bar', b);
+    expect$.Expect.equals('baz', c);
+  };
+  dart.fn(parameter_name_conflict_test.foo, dynamicTodynamic());
+  parameter_name_conflict_test.bar = function() {
+    return 'bar';
+  };
+  dart.fn(parameter_name_conflict_test.bar, VoidTodynamic());
+  parameter_name_conflict_test.baz = function() {
+    return 'baz';
+  };
+  dart.fn(parameter_name_conflict_test.baz, VoidTodynamic());
+  parameter_name_conflict_test.main = function() {
+    parameter_name_conflict_test.foo('foo');
+  };
+  dart.fn(parameter_name_conflict_test.main, VoidTodynamic());
+  // Exports:
+  exports.parameter_name_conflict_test = parameter_name_conflict_test;
+});