Implement flag and source getters on RegExp.prototype.

test/mjsunit/regexp.js

Index: test/mjsunit/regexp.js
diff --git a/test/mjsunit/regexp.js b/test/mjsunit/regexp.js
index c2d92823bce985a3c66e1cba873da85e7cab4d94..ab33f3ff496985919405684485ac93d74156c51e 100644
--- a/test/mjsunit/regexp.js
+++ b/test/mjsunit/regexp.js
@@ -605,23 +605,20 @@ assertEquals(["ts", "li"], log);
 
 // Check that properties of RegExp have the correct permissions.
 var re = /x/g;
-var desc = Object.getOwnPropertyDescriptor(re, "global");
-assertEquals(true, desc.value);
-assertEquals(false, desc.configurable);

[Dan Ehrenberg, 2015/11/02 19:21:06]

Why not leave part of this in, just to check that re doesn't have "global" and
friends as own properties?

+var desc = Object.getOwnPropertyDescriptor(re.__proto__, "global");
+assertInstanceof(desc.get, Function);
+assertEquals(true, desc.configurable);
 assertEquals(false, desc.enumerable);
-assertEquals(false, desc.writable);
 
-desc = Object.getOwnPropertyDescriptor(re, "multiline");
-assertEquals(false, desc.value);
-assertEquals(false, desc.configurable);
+desc = Object.getOwnPropertyDescriptor(re.__proto__, "multiline");
+assertInstanceof(desc.get, Function);
+assertEquals(true, desc.configurable);
 assertEquals(false, desc.enumerable);
-assertEquals(false, desc.writable);
 
-desc = Object.getOwnPropertyDescriptor(re, "ignoreCase");
-assertEquals(false, desc.value);
-assertEquals(false, desc.configurable);
+desc = Object.getOwnPropertyDescriptor(re.__proto__, "ignoreCase");
+assertInstanceof(desc.get, Function);
+assertEquals(true, desc.configurable);
 assertEquals(false, desc.enumerable);
-assertEquals(false, desc.writable);
 
 desc = Object.getOwnPropertyDescriptor(re, "lastIndex");
 assertEquals(0, desc.value);