KVC behaviour on accessor methods with unsupported types

[Eric Wasylishen]

Hi,

I noticed that if you have getter/setter methods with return/argument types not supported by KVC (for example, SEL), trying to get or set it using KVC throws an exception on GNUstep, while on OS X 10.5, valueForUndefinedKey: or setValue:forUndefinedKey: are called.

I've attached a test program along with a patch for GNUstep base which changes the behaviour to match OS X. 

OS X 10.5 output:

2009-08-18 11:19:17.735 Collage[73996:813] setValue:forUndefinedKey: called

2009-08-18 11:19:17.737 Collage[73996:813] Test finished.

GNUstep output:

: Uncaught exception NSInvalidArgumentException, reason: key-value get method has unsupported type

Aborted

-Eric

main.m
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KVCPatch.patch
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