Bug 1320198 - Land additional Error prototype test. r=arai

js/src/tests/ecma_6/Error/prototype-properties.js

@@ -0,0 +1,24 @@
+const nativeErrors = [
+    InternalError,
+    EvalError,
+    RangeError,
+    ReferenceError,
+    SyntaxError,
+    TypeError,
+    URIError
+];
+
+
+assertEq(Reflect.ownKeys(Error.prototype).toString(), "toSource,toString,message,name,stack,constructor");
+assertEq(Error.prototype.name, "Error");
+assertEq(Error.prototype.message, "");
+
+for (const error of nativeErrors) {
+    assertEq(Reflect.ownKeys(error.prototype).toString(), "message,name,constructor");
+    assertEq(error.prototype.name, error.name);
+    assertEq(error.prototype.message, "");
+    assertEq(error.prototype.constructor, error);
+}
+
+if (typeof reportCompare === "function")
+    reportCompare(0, 0);