Squeak 3.9 #7067

I happened to be comparing Squeak to Dolphin CE, and ran across
this bug in Squeak relating to respondsTo:

(3 @ 4) respondsTo: #<=.  "Squeak reports this as false"

However:

(3 @ 4) <= (10 @ 15). "true"

(3 @ 4) <= (1 @ 15). "false"

Trying other methods for Point, I get many similar 'false' results when
sending 'respondsTo:' to Point (but I also get many correct results).

ie.

Point respondsTo: #abs.  "false"
however,
Point respondsTo: #hash.   "true"
Point respondsTo: #storeOn:.  true

Point respondsTo: #x. false
but
(3 @ 4) x. "3"

Point respondsTo: #y. false
but
(3 @ 4) y. "4"

There does not seem to be any pattern to when
respondsTo: works correctly and when it doesn't.

-- dae