Fix TypeError message for Reflect.construct

test/mjsunit/es6/reflect-construct.js

Index: test/mjsunit/es6/reflect-construct.js
diff --git a/test/mjsunit/es6/reflect-construct.js b/test/mjsunit/es6/reflect-construct.js
index 4661b4093b3014a72b6153f45ab2b965c62bb283..9de515800531076ad7c59c57a8e921dedf25c08f 100644
--- a/test/mjsunit/es6/reflect-construct.js
+++ b/test/mjsunit/es6/reflect-construct.js
@@ -17,6 +17,30 @@
 })();
 
 
+(function testReflectConstructArg1NonConstructor() {
+  try {
+    Reflect.construct(() => {}, []);
+  } catch (e) {
+    assertInstanceof(e, TypeError);
+    assertEquals("() => {} is not a constructor", e.message);
+    return;
+  }
+  assertUnreachable("Exception expected");
+})();
+
+
+(function testReflectConstructArg3NonConstructor() {
+  try {
+    Reflect.construct(function() {}, [], () => {});
+  } catch (e) {
+    assertInstanceof(e, TypeError);
+    assertEquals("() => {} is not a constructor", e.message);
+    return;
+  }
+  assertUnreachable("Exception expected");
+})();
+
+
 (function testReflectConstructBasic() {
   function Constructor() { "use strict"; }
   assertInstanceof(Reflect.construct(Constructor, []), Constructor);