Parse 123..toString(16) says "Invalid number"

[mishoo]

Should parse equivalent to (123).toString(16).

[ariya]

For a reference on how the syntax tree should look like: http://esprima.org/demo/parse.html?code=123..toString(16).

[hackwaly]

I've seem that commit only fix .. case.
so, what about 123.+1 and any more? test fail on it.
ref: http://esprima.org/demo/parse.html?code=123.+1

[marijnh]

There was some hair-brained code in readNumber that consumed +/- after a dot.