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Ensure methods of Object are also available on interface objects (#1284)

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`@@ -32,6 +32,7 @@ details about the cause of the failure`
`32`	`32`	`- Indexers can now be used with interface objects`
`33`	`33`	`- Fixed a bug where indexers could not be used if they were inherited`
`34`	`34`	- Made it possible to use`__len__` also on`ICollection<>` interface objects
	`35`	+- Made it possible to call`ToString`,`GetHashCode`, and`GetType` on inteface objects
`35`	`36`
`36`	`37`	`###Removed`
`37`	`38`

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Original file line number	Diff line number	Diff line change
`@@ -341,6 +341,17 @@ private static ClassInfo GetClassInfo(Type type)`
`341`	`341`	`}`
`342`	`342`	`}`
`343`	`343`	`}`
	`344`	`+`
	`345`	`+// All interface implementations inherit from Object,`
	`346`	`+// but GetMembers don't return them either.`
	`347`	`+varobjFlags=BindingFlags.Public\|BindingFlags.Instance;`
	`348`	`+foreach(varmiintypeof(object).GetMembers(objFlags))`
	`349`	`+{`
	`350`	`+if(local[mi.Name]==null)`
	`351`	`+{`
	`352`	`+items.Add(mi);`
	`353`	`+}`
	`354`	`+}`
`344`	`355`	`}`
`345`	`356`
`346`	`357`	`for(i=0;i<items.Count;i++)`

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`@@ -136,3 +136,14 @@ def test_interface_collection_iteration():`
`136`	`136`	`untyped_list.Add(elem)`
`137`	`137`	`foreinuntyped_list:`
`138`	`138`	`asserttype(e).__name__=="int"`
	`139`	`+`
	`140`	`+`
	`141`	`+deftest_methods_of_Object_are_available():`
	`142`	`+"""Test calling methods inherited from Object"""`
	`143`	`+importSystem`
	`144`	`+clrVal=System.Int32(100)`
	`145`	`+i=System.IComparable(clrVal)`
	`146`	`+asserti.Equals(clrVal)`
	`147`	`+assertclrVal.GetHashCode()==i.GetHashCode()`
	`148`	`+assertclrVal.GetType()==i.GetType()`
	`149`	`+assertclrVal.ToString()==i.ToString()`

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