`ccmp` in Lua（la)TeX/ConTeXt, with Source Han serif font

I don't think the release version of this font contains this feature yet; I was only able to get it to work with a different font:

\documentclass{article}
\usepackage{fontspec}% only to conditionally load luaotfload if necessary
\begin{document}
\font\1="[Biang-Heavy.otf]" at 20pt\1
⿺辶⿳穴⿰月⿰⿲⿱幺長⿱言馬⿱幺長刂心
\end{document}

Because the question is tagged context here a version of Will's solution for ConTeXt MKIV. Direct download of Biang Heavy.

\definefontfeature[default][default][ccmp=yes]
\definefont[Biang][Biang-Heavy.otf*default at 20pt]
\starttext
\Biang ⿺辶⿳穴⿰月⿰⿲⿱幺長⿱言馬⿱幺長刂心
\stoptext

Source Han Serif and Source Han Sans(v2.000) supports this feature (I use XeLaTeX here):

% XeLaTeX
\documentclass{article}
\usepackage{fontspec}
\def\biangT{⿺辶⿳穴⿰月⿰⿲⿱幺長⿱言馬⿱幺長刂心}
\def\biangS{⿺辶⿳穴⿰月⿰⿲⿱幺长⿱言马⿱幺长刂心}
\begin{document}
  \fontspec{Source Han Serif SC}%
  \biangT\biangS
  \fontspec{Source Han Sans SC}%
  \biangT\biangS
\end{document}