#926 doesn't compile on beos, (wcslen; wcscpy, wcscat)

[Riccardo Mottola]

/boot/home/jikes-1.22/src/control.h: In method `class
Utf8LiteralValue * Control::ConvertUnicodeToUtf8(const
__wchar_t *)':
In file included from /boot/home/jikes-1.22/src/body.cpp:12:
/boot/home/jikes-1.22/src/control.h:370: implicit declaration
of function `int wcslen(...)'
/boot/home/jikes-1.22/src/control.h: In method `class
NameSymbol * Control::MakeParameter(int)':
/boot/home/jikes-1.22/src/control.h:426: implicit declaration
of function `int wcscpy(...)'
/boot/home/jikes-1.22/src/body.cpp: In method `class
TypeSymbol * Semantic::GetLocalType(class
AstDeclaredType *)':
/boot/home/jikes-1.22/src/body.cpp:1957: implicit declaration
of function `int wcscat(...)'