Refactor Utilities' CommonRequestStrings: Instead of an obsolescent string, store the code itself.
This allows to benefit from senders and other refactoring tools. Also, it's impossible to compile invalid code. As you can see, I commented one line out as it contains a selector that is no longer present in modern Squeak.
This change should not affect overall performance, as #commonRequestStrings keeps caching the result.
Please note that when merging this commit into Trunk, a conflict with System-ct.1103 will be to solved manually.
=============== Diff against System-mt.1116 ===============
Item was changed:
----- Method: Utilities class>>initializeCommonRequestStrings (in category 'common requests') -----
"Initialize the common request strings, a directly-editable list of expressions that can be evaluated from the 'do...' menu."