Currently,
BlockClosure >> #= aClosure
	self == aClosure ifTrue: [^true].
	aClosure class = self class ifFalse: [^false].
	(self method == aClosure method and: [startpc = aClosure startpc and: [self
isClean]]) "<--- this line"
		ifTrue: [^true].
	^outerContext = aClosure outerContext and: [startpc = aClosure startpc]

I wonder about `startpc = aClosure startpc` the first time it appears (in
the comment-marked line). With it, in a workspace, the following is false:
`[1] = [1]`, but removing that test makes it true. I'm not an expert on
blocks, but doesn't `#isClean` preclude the need/desire for a startpc check
in that statement?



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Cheers,
Sean
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