Check in codegen test expectations.

test/codegen/expect/language/field_inference_test.js

Index: test/codegen/expect/language/field_inference_test.js
diff --git a/test/codegen/expect/language/field_inference_test.js b/test/codegen/expect/language/field_inference_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..3e881ef718f589c0615656e832ea9ebb8f3f8335
--- /dev/null
+++ b/test/codegen/expect/language/field_inference_test.js
@@ -0,0 +1,74 @@
+dart_library.library('language/field_inference_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__field_inference_test(exports, dart_sdk, expect) {
+  'use strict';
+  const core = dart_sdk.core;
+  const _interceptors = dart_sdk._interceptors;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const expect$ = expect.expect;
+  const field_inference_test = Object.create(null);
+  let JSArrayOfObject = () => (JSArrayOfObject = dart.constFn(_interceptors.JSArray$(core.Object)))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  const _field = Symbol('_field');
+  field_inference_test.A = class A extends core.Object {
+    get field() {
+      return this[_field];
+    }
+    new(field) {
+      this[_field] = field;
+      this.other = null;
+    }
+    fromOther(other) {
+      this.other = other;
+      this[_field] = null;
+      this[_field] = dart.dload(this.other, 'field');
+    }
+  };
+  dart.defineNamedConstructor(field_inference_test.A, 'fromOther');
+  dart.setSignature(field_inference_test.A, {
+    constructors: () => ({
+      new: dart.definiteFunctionType(field_inference_test.A, [dart.dynamic]),
+      fromOther: dart.definiteFunctionType(field_inference_test.A, [dart.dynamic])
+    })
+  });
+  field_inference_test.B = class B extends core.Object {
+    new() {
+      this.a = null;
+      try {
+        this.a = new field_inference_test.A(42);
+      } catch (e) {
+        throw e;
+      }
+
+    }
+  };
+  dart.setSignature(field_inference_test.B, {
+    constructors: () => ({new: dart.definiteFunctionType(field_inference_test.B, [])})
+  });
+  dart.defineLazy(field_inference_test, {
+    get array() {
+      return JSArrayOfObject().of([new field_inference_test.A(42), new field_inference_test.B()]);
+    },
+    set array(_) {}
+  });
+  field_inference_test.main = function() {
+    new field_inference_test.B();
+    let a = field_inference_test.analyzeAfterB();
+    new field_inference_test.B();
+    expect$.Expect.equals(42, dart.dload(a, _field));
+  };
+  dart.fn(field_inference_test.main, VoidTodynamic());
+  field_inference_test.analyzeAfterB = function() {
+    try {
+      return new field_inference_test.A.fromOther(field_inference_test.array[dartx.get](0));
+    } catch (e) {
+      throw e;
+    }
+
+  };
+  dart.fn(field_inference_test.analyzeAfterB, VoidTodynamic());
+  // Exports:
+  exports.field_inference_test = field_inference_test;
+});