Hi All,

We have three primitives for three different versions of #flushCache:
- primitive 89 used by Behavior >> #flushCache
- primitive 116 used by CompiledMethod >> #flushCache
- primitive 119 used by Symbol >> #flushCache

Based on the comment in CompiledMethod >> #flushCache, and Symbol >> 
#flushCache, primitive 119 is not used since Squeak 2.3, and Symbol >> 
#flushCache can safely be removed.
But the method is still in the image, and it is being sent whenever a 
method is removed or added to a class.
Is the comment wrong, or the method is really not needed?

Also the last comments in Behavior >> #basicAddSelector:withMethod: and 
Behavior >> #basicRemoveSelector: suggest that either the method's or the 
selector's cache should be flushed, but not both, which is actually the 
case in both methods.
The comment in Symbol >> #flushCache suggests the same. So what's the 
truth? Do we still need primitive 119?

Levente