Hi.

While checking some heavy number crunching, again in the method 
#spyOn:every: a variable was rendered into nil without the tally knowing about it. This 
time, the nilled variable came out to be ObservedProcess, and because it was 
nil, it didn't understand #suspendContext. Maybe the comment there about long 
primitives has something to do... the tally was as follows:

 - 681 tallies.

**Tree**
100.0 ProbabilityInterval>>binaryUpscale
  44.3 Fraction>>timesTwoPower:
    |44.3 LargePositiveInteger>>bitShift:
    |  44.3 LargePositiveInteger(Integer)>>bitShift:
    |    43.9 LargePositiveInteger(Integer)>>digitRshift:bytes:lookfirst:
    |      43.6 primitives
  29.8 Fraction(Number)>>floor
    |29.8 Fraction>>truncated
    |  29.8 LargePositiveInteger>>quo:
    |    29.8 LargePositiveInteger(Integer)>>quo:
    |      29.8 LargePositiveInteger(Integer)>>digitDiv:neg:
    |        29.7 primitives
  16.4 Fraction>>+
    |15.7 LargePositiveInteger(Integer)>>gcd:
    |  7.8 LargePositiveInteger(Number)>>rem:
    |    |5.1 LargePositiveInteger>>quo:
    |    |  |5.1 LargePositiveInteger(Integer)>>quo:
    |    |  |  5.1 LargePositiveInteger(Integer)>>digitDiv:neg:
    |    |  |    4.8 primitives
    |    |2.6 LargePositiveInteger>>*
    |    |  2.6 LargePositiveInteger(Integer)>>*
    |    |    2.6 LargePositiveInteger(Integer)>>digitMultiply:neg:
    |  6.2 LargePositiveInteger>>*
    |    6.2 LargePositiveInteger(Integer)>>*
    |      6.0 LargePositiveInteger(Integer)>>digitMultiply:neg:
  9.4 Fraction>>-
    9.4 Fraction>>-
      9.4 Fraction>>+
        8.5 LargeNegativeInteger(LargePositiveInteger)>>*
          8.5 LargeNegativeInteger(Integer)>>*
            8.5 LargeNegativeInteger(Integer)>>digitMultiply:neg:

**Leaves**
44.2 LargePositiveInteger(Integer)>>digitRshift:bytes:lookfirst:
35.7 LargePositiveInteger(Integer)>>digitDiv:neg:
17.3 LargePositiveInteger(Integer)>>digitMultiply:neg:

As you can see, LOTS of primitives.

Andres.