8234541: C1 emits an empty message when it inlines successfully
Summary: Use "inline" as the message when successfull
Reviewed-by: thartmann, mdoerr
Contributed-by: navy.xliu@gmail.com
/(?:[^[#\s\\]+|\\(?:[\S\s]|$)|\[\^?]?(?:[^\\\]]+|\\(?:[\S\s]|$))*]?)+|(\s*#[^\n\r\u2028\u2029]*\s*|\s+)([?*+]|{[0-9]+(?:,[0-9]*)?})?/g
/{[0-9]+}?/g
{123}
{a}
f{a}
f
SyntaxError
SyntaxError