Bug 1381275 - Report proper object in NewPromiseCapability TypeError. r=fitzgen

js/src/builtin/Promise.cpp

@@ -692,7 +692,7 @@ NewPromiseCapability(JSContext* cx, HandleObject C, MutableHandleObject promise,
 
     // Steps 1-2.
     if (!IsConstructor(C)) {
-        ReportValueError(cx, JSMSG_NOT_CONSTRUCTOR, -1, cVal, nullptr);
+        ReportValueError(cx, JSMSG_NOT_CONSTRUCTOR, JSDVG_SEARCH_STACK, cVal, nullptr);
         return false;
     }
 

js/src/jit-test/tests/promise/newpromisecapability-error-message.js

@@ -0,0 +1,20 @@
+load(libdir + "asserts.js");
+
+let foo = {};
+for (let method of ["resolve", "reject", "race"]) {
+  assertErrorMessage(
+    () => Promise[method].call(foo),
+    TypeError,
+    "foo is not a constructor"
+  );
+  assertErrorMessage(
+    () => Promise[method].call(foo, []),
+    TypeError,
+    "foo is not a constructor"
+  );
+  assertErrorMessage(
+    () => Promise[method].call({}, [], foo),
+    TypeError,
+    "({}) is not a constructor"
+  );
+}