renamed neko.StringBuf.__string to __to_string (fixed issue #1292)

std/haxe/io/BytesBuffer.hx

@@ -122,7 +122,7 @@ class BytesBuffer {
 	**/
 	public function getBytes() : Bytes untyped {
 		#if neko
-		var str = StringBuf.__string(b);
+		var str = StringBuf.__to_string(b);
 		var bytes = new Bytes(__dollar__ssize(str),str);
 		#elseif flash9
 		var bytes = new Bytes(b.length,b);

std/neko/_std/StringBuf.hx

@@ -40,13 +40,13 @@
 	}
 
 	public inline function toString() : String {
-		return new String(__string(b));
+		return new String(__to_string(b));
 	}
 
 	static var __make : Dynamic = neko.Lib.load("std","buffer_new",0);
 	static var __add : Dynamic = neko.Lib.load("std","buffer_add",2);
 	static var __add_char : Dynamic = neko.Lib.load("std","buffer_add_char",2);
 	static var __add_sub : Dynamic = neko.Lib.load("std","buffer_add_sub",4);
-	static var __string : Dynamic = neko.Lib.load("std","buffer_string",1);
+	static var __to_string : Dynamic = neko.Lib.load("std","buffer_string",1);
 
 }