Interval size error with Floating Point step

[rjsargent]

Pharo v9 through v12 overstates the size of (-4 to: 4 by: 0.1)
Bug description
Since 0.1 is not exactly represented in FP, we should see only 80 elements in that interval. But, #size calculates as 81 rather than 80.

To Reproduce
| elements |
elements := OrderedCollection new.
-4 to: 4 by: 0.1 do: [ :i | elements add: i].
elements size
80

| elements |
elements := OrderedCollection new.
(-4 to: 4 by: 0.1) do: [ :i | elements add: i].
elements size
81

Expected behavior
#do: should enumerate the same 80 elements that #to:by:do: does.

Screenshots
If applicable, add screenshots to help explain your problem.

Version information:

• OS: Windows
• Version: 10 Pro
• Pharo Version: 9 through 12, at least

Expected development cost
Expected to be small

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