char *getImageName(void)

Parms: NONE
return: pointer to C character path name for image
From: Interpreter getAttributes attribute 1
Why:
need readable form of squeak image path for get attribute 1

Responsibility:

MacIntosh
os-9/OSXCarbon
returns imageName in image encoding

Cocoa:
TBD

iPhone
returns UTF8String from imageNameURL

Unix
returns imageName no change to encoding

Windows
Not used?

BUGS
It's unclear if this has to be an encoded or non-encoded name, is it in image encoding or VM encoding?