Check in codegen test expectations.

test/codegen/expect/language/assertion_test.js

+dart_library.library('language/assertion_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__assertion_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 assertion_test = Object.create(null);
+  let VoidTobool = () => (VoidTobool = dart.constFn(dart.definiteFunctionType(core.bool, [])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  assertion_test.AssertionTest = class AssertionTest extends core.Object {
+    static testTrue() {
+      let i = 0;
+      try {
+        dart.assert(true);
+      } catch (error) {
+        if (core.AssertionError.is(error)) {
+          i = 1;
+        } else
+          throw error;
+      }
+
+      return i;
+    }
+    static testFalse() {
+      let i = 0;
+      try {
+        dart.assert(false);
+      } catch (error) {
+        if (core.AssertionError.is(error)) {
+          i = 1;
+        } else
+          throw error;
+      }
+
+      return i;
+    }
+    static unknown(a) {
+      return dart.test(a) ? true : false;
+    }
+    static testUnknown() {
+      let x = assertion_test.AssertionTest.unknown(false);
+      let i = 0;
+      try {
+        dart.assert(x);
+      } catch (error) {
+        if (core.AssertionError.is(error)) {
+          i = 1;
+        } else
+          throw error;
+      }
+
+      return i;
+    }
+    static testClosure() {
+      let i = 0;
+      try {
+        dart.assert(dart.fn(() => false, VoidTobool()));
+      } catch (error) {
+        if (core.AssertionError.is(error)) {
+          i = 1;
+        } else
+          throw error;
+      }
+
+      return i;
+    }
+    static testClosure2() {
+      let i = 0;
+      try {
+        let x = dart.fn(() => false, VoidTobool());
+        dart.assert(x);
+      } catch (error) {
+        if (core.AssertionError.is(error)) {
+          i = 1;
+        } else
+          throw error;
+      }
+
+      return i;
+    }
+    static testMain() {
+      expect$.Expect.equals(0, assertion_test.AssertionTest.testTrue());
+      expect$.Expect.equals(1, assertion_test.AssertionTest.testFalse());
+      expect$.Expect.equals(1, assertion_test.AssertionTest.testClosure());
+      expect$.Expect.equals(1, assertion_test.AssertionTest.testClosure2());
+    }
+  };
+  dart.setSignature(assertion_test.AssertionTest, {
+    statics: () => ({
+      testTrue: dart.definiteFunctionType(dart.dynamic, []),
+      testFalse: dart.definiteFunctionType(dart.dynamic, []),
+      unknown: dart.definiteFunctionType(dart.dynamic, [dart.dynamic]),
+      testUnknown: dart.definiteFunctionType(dart.dynamic, []),
+      testClosure: dart.definiteFunctionType(dart.dynamic, []),
+      testClosure2: dart.definiteFunctionType(dart.dynamic, []),
+      testMain: dart.definiteFunctionType(dart.dynamic, [])
+    }),
+    names: ['testTrue', 'testFalse', 'unknown', 'testUnknown', 'testClosure', 'testClosure2', 'testMain']
+  });
+  assertion_test.main = function() {
+    assertion_test.AssertionTest.testMain();
+  };
+  dart.fn(assertion_test.main, VoidTodynamic());
+  // Exports:
+  exports.assertion_test = assertion_test;
+});