Refactoring could fail if the warning level is not 0

[Gabriel Cotelli]

Hi,

I made the following change:

RefactoryChangeManager>>ignoreChangesWhile: aBlock

"Added useWarningLevel0While: because if the warning level is not 0 the refactoring can 

fail during the execution and leave the code in an inconsistent state - g.cotelli"

Compiler useWarningLevel0While: [

isPerformingRefactoring ifTrue: [^aBlock value].

isPerformingRefactoring := true.

aBlock ensure: [isPerformingRefactoring := false]]

to avoid some failure doing refactorings when the warning level is for example at 2. To reproduce perform a refactoring that needs to change a method that raises a warning at the current level (but not at 0). Without the Compiler userWarningLevel0While:  the refactoring fails in the middle of the execution leaving the code in an inconsistent state.

Feel free to integrate this change.

Regards,

Gabriel