Check in codegen test expectations.

test/codegen/expect/language/regress_12615_test.js

Index: test/codegen/expect/language/regress_12615_test.js
diff --git a/test/codegen/expect/language/regress_12615_test.js b/test/codegen/expect/language/regress_12615_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..ef45c11e1cceba7526c57d28f27e7ded1de4fae6
--- /dev/null
+++ b/test/codegen/expect/language/regress_12615_test.js
@@ -0,0 +1,31 @@
+dart_library.library('language/regress_12615_test', null, /* Imports */[
+  'dart_sdk'
+], function load__regress_12615_test(exports, dart_sdk) {
+  'use strict';
+  const core = dart_sdk.core;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const regress_12615_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  regress_12615_test.main = function() {
+    function test() {
+      function f() {
+        try {
+        } catch (e) {
+        }
+
+      }
+      dart.fn(f, VoidTodynamic());
+      try {
+      } catch (e) {
+      }
+
+    }
+    dart.fn(test, VoidTovoid());
+    test();
+  };
+  dart.fn(regress_12615_test.main, VoidTodynamic());
+  // Exports:
+  exports.regress_12615_test = regress_12615_test;
+});