Support for [Clamp] and [EnforceRange] to IDL dictionary.

LayoutTests/fast/dom/idl-dictionary-unittest.html

Index: LayoutTests/fast/dom/idl-dictionary-unittest.html
diff --git a/LayoutTests/fast/dom/idl-dictionary-unittest.html b/LayoutTests/fast/dom/idl-dictionary-unittest.html
index 4422ae1d37635f400e348112e5da7c10eab582cf..954be2d6f76341325efcb98da19417ae6027b17f 100644
--- a/LayoutTests/fast/dom/idl-dictionary-unittest.html
+++ b/LayoutTests/fast/dom/idl-dictionary-unittest.html
@@ -128,6 +128,17 @@ if (window.internals && internals.dictionaryTest) {
     shouldThrow("dictionaryTest.set('string')");
     debug('');
 
+    debug('Test for [Clamp] and [EnforceRange] member');
+    dictionaryTest.set({
+        longMember: 2147483648,
+        longMemberWithClamp: 2147483648
+    });
+    dict = dictionaryTest.get();
+    shouldBe('dict.longMember', '-2147483648');
+    shouldBe('dict.longMemberWithClamp', '2147483647');
+    shouldThrow('dictionaryTest.set({ longMemberWithEnforceRange: 2147483648 })');
+    debug('');
+
     debug('Test for derived dictionary');
     dictionaryTest.setDerived({});
     derived = dictionaryTest.getDerived();