Debugger: Use the BVariant default constructor in Token().

The value-based constructor does the same. Fixes an "ambiguous
call" error on ARM builds.

src/kits/debugger/source_language/c_family/CLanguageTokenizer.cpp

@@ -29,7 +29,7 @@ Token::Token()
 	:
 	string(""),
 	type(TOKEN_NONE),
-	value(0L),
+	value(),
 	position(0)
 {
 }