setValue:forKey broken for bool properties

[Mathias Bauer]

Hi,

the following simple program crashes because GSObjCSetVal in 
GSObjCRuntime.m does not handle boolean values:

> #import <Foundation/Foundation.h>
>
> @interface TestObject : NSObject
> @property (nonatomic, assign) bool switcher;
> @end
>
> @implementation TestObject
> @end
>
> int main(int argc, const char * argv[])
> {
>     TestObject* test = [TestObject new];
>
>     [test setValue:[NSNumber numberWithBool:YES] forKey:@"switcher"];
>     return 0;
> }

compiled with:
clang `gnustep-config --objc-flags` -x objective-c -fobjc-arc -std=gnu99 
-fpascal-strings -fstrict-aliasing -lobjc -lgnustep-base `gnustep-config 
--objc-libs` test.m

I think this is a serious defect. On my system the type that needed to 
be handled in GSObjCSetVal would be "B16", but on other system this 
might be different.

I'm unsure about how a correct fix should be, so any opinions of people 
in the know would be greatly appreciated.

Best regards,
Mathias