with the Foundation framework.
* objc/execute/next_mapping.h: Provide a local NSConstantString
@interface and @implementation.
- (objc_string_init): A constructor function, used to initialize
- the NSConstantString meta-class object.
+ (objc_constant_string_init): A constructor function, used to
+ initialize the NSConstantString meta-class object.
* objc/execute/string1.m: Include "next_mapping.h" instead of
<Foundation/NSString.h>.
* objc/execute/string2.m: Likewise.