Check in codegen test expectations.

test/codegen/expect/corelib/expression_test.js

Index: test/codegen/expect/corelib/expression_test.js
diff --git a/test/codegen/expect/corelib/expression_test.js b/test/codegen/expect/corelib/expression_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..030f4b89becc2f65fe5b0473ce1d9d541c22f35a
--- /dev/null
+++ b/test/codegen/expect/corelib/expression_test.js
@@ -0,0 +1,158 @@
+dart_library.library('corelib/expression_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__expression_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 expression_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  expression_test.ExpressionTest = class ExpressionTest extends core.Object {
+    new() {
+      this.foo = null;
+    }
+    static testMain() {
+      let test = new expression_test.ExpressionTest();
+      test.testBinary();
+      test.testUnary();
+      test.testShifts();
+      test.testBitwise();
+      test.testIncrement();
+      test.testMangling();
+    }
+    testBinary() {
+      let x = 4, y = 2;
+      expect$.Expect.equals(6, x + y);
+      expect$.Expect.equals(2, x - y);
+      expect$.Expect.equals(8, x * y);
+      expect$.Expect.equals(2, x / y);
+      expect$.Expect.equals(0, x[dartx['%']](y));
+    }
+    testUnary() {
+      let x = 4, y = 2, z = -5;
+      let t = true, f = false;
+      expect$.Expect.equals(-4, -x);
+      expect$.Expect.equals(4, ~z >>> 0);
+      expect$.Expect.equals(f, !t);
+    }
+    testShifts() {
+      let x = 4, y = 2;
+      expect$.Expect.equals(y, x[dartx['>>']](1));
+      expect$.Expect.equals(x, y << 1 >>> 0);
+    }
+    testBitwise() {
+      let x = 4, y = 2;
+      expect$.Expect.equals(6, (x | y) >>> 0);
+      expect$.Expect.equals(0, (x & y) >>> 0);
+      expect$.Expect.equals(6, (x ^ y) >>> 0);
+    }
+    get(index) {
+      return this.foo;
+    }
+    set(index, value) {
+      this.foo = value;
+      return value;
+    }
+    testIncrement() {
+      let x = 4, a = x++;
+      expect$.Expect.equals(4, a);
+      expect$.Expect.equals(5, x);
+      expect$.Expect.equals(6, ++x);
+      expect$.Expect.equals(6, x++);
+      expect$.Expect.equals(7, x);
+      expect$.Expect.equals(6, --x);
+      expect$.Expect.equals(6, x--);
+      expect$.Expect.equals(5, x);
+      this.foo = 0;
+      expect$.Expect.equals(0, (() => {
+        let x = this.foo;
+        this.foo = dart.notNull(x) + 1;
+        return x;
+      })());
+      expect$.Expect.equals(1, this.foo);
+      expect$.Expect.equals(2, (this.foo = dart.notNull(this.foo) + 1));
+      expect$.Expect.equals(2, this.foo);
+      expect$.Expect.equals(2, (() => {
+        let x = this.foo;
+        this.foo = dart.notNull(x) - 1;
+        return x;
+      })());
+      expect$.Expect.equals(1, this.foo);
+      expect$.Expect.equals(0, (this.foo = dart.notNull(this.foo) - 1));
+      expect$.Expect.equals(0, this.foo);
+      expect$.Expect.equals(0, (() => {
+        let i = 0, x = this.get(i);
+        this.set(i, dart.notNull(x) + 1);
+        return x;
+      })());
+      expect$.Expect.equals(1, this.get(0));
+      expect$.Expect.equals(2, (() => {
+        let i = 0;
+        return this.set(i, dart.notNull(this.get(i)) + 1);
+      })());
+      expect$.Expect.equals(2, this.get(0));
+      expect$.Expect.equals(2, (() => {
+        let i = 0, x = this.get(i);
+        this.set(i, dart.notNull(x) - 1);
+        return x;
+      })());
+      expect$.Expect.equals(1, this.get(0));
+      expect$.Expect.equals(0, (() => {
+        let i = 0;
+        return this.set(i, dart.notNull(this.get(i)) - 1);
+      })());
+      expect$.Expect.equals(0, this.get(0));
+      let $0 = 42, $1 = 87, $2 = 117;
+      expect$.Expect.equals(42, $0++);
+      expect$.Expect.equals(43, $0);
+      expect$.Expect.equals(44, ++$0);
+      expect$.Expect.equals(88, ($0 = $0 + $0));
+      expect$.Expect.equals(87, $1++);
+      expect$.Expect.equals(88, $1);
+      expect$.Expect.equals(89, ++$1);
+      expect$.Expect.equals(178, ($1 = $1 + $1));
+      expect$.Expect.equals(117, $2++);
+      expect$.Expect.equals(118, $2);
+      expect$.Expect.equals(119, ++$2);
+    }
+    testMangling() {
+      let $0 = 42, $1 = 87, $2 = 117;
+      this.set(0, 0);
+      expect$.Expect.equals(42, (() => {
+        let i = 0;
+        return this.set(i, dart.notNull(this.get(i)) + $0);
+      })());
+      expect$.Expect.equals(129, (() => {
+        let i = 0;
+        return this.set(i, dart.notNull(this.get(i)) + $1);
+      })());
+      expect$.Expect.equals(246, (() => {
+        let i = 0;
+        return this.set(i, dart.notNull(this.get(i)) + $2);
+      })());
+    }
+  };
+  dart.setSignature(expression_test.ExpressionTest, {
+    constructors: () => ({new: dart.definiteFunctionType(expression_test.ExpressionTest, [])}),
+    methods: () => ({
+      testBinary: dart.definiteFunctionType(dart.dynamic, []),
+      testUnary: dart.definiteFunctionType(dart.dynamic, []),
+      testShifts: dart.definiteFunctionType(dart.dynamic, []),
+      testBitwise: dart.definiteFunctionType(dart.dynamic, []),
+      get: dart.definiteFunctionType(dart.dynamic, [core.int]),
+      set: dart.definiteFunctionType(dart.dynamic, [core.int, core.int]),
+      testIncrement: dart.definiteFunctionType(dart.dynamic, []),
+      testMangling: dart.definiteFunctionType(dart.void, [])
+    }),
+    statics: () => ({testMain: dart.definiteFunctionType(dart.dynamic, [])}),
+    names: ['testMain']
+  });
+  expression_test.main = function() {
+    expression_test.ExpressionTest.testMain();
+  };
+  dart.fn(expression_test.main, VoidTodynamic());
+  // Exports:
+  exports.expression_test = expression_test;
+});