VALUE              67 src/interface.h     static Interface value_interface(VALUE + FROZEN);  // Cached.
VALUE              72 src/interface.h     static Interface value_interface(VALUE + CONST + FROZEN);  // Cached.
VALUE              96 src/interface.h     if (*ok) Chase()->flags_ |= VALUE;
VALUE             102 src/interface.h     if (*ok) Chase()->flags_ |= VALUE + CONST;
VALUE             130 src/interface.h   bool IsValue() { return Chase()->flags_ & VALUE; }