VMMaker.oscog-eem.981:Eliminating warnings in B2DPlugin and theVMProfileLinuxSupportPlugin.

VMMaker.oscog-eem.980:
And fix the regression in generateShiftLeft:on:indent:
updated AioPlugin
VMMaker.oscog-eem.984:Hack fix generateIntegerObjectOf:on:indent: for 64 bits.

VMMaker.oscog-eem.983:and to avoid including positiveMachineIntegerFor:et al in every plugin add a dead code removal pass.Fix unreachableMethods to do a proper tramsitiveclosure and answer methods instead of selectors.

VMMaker.oscog-eem.982:Provide accessors in InterpreterPlugin to answerinteger objects for positive and signed machinewords.Use these to make the ALien plugins 64-bit capable.
added a explicit generation of msg because for some reason it was failing :(