rem: case F(G(y)): return cnMatch; 
add: case F(G(y)): return cnMatch; 
context: function match(x, y, F, G){  switch (x)  {    case F(G(y)):      return cnMatch;    default:      return cnNoMatch;  }}
meta: 10520	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10520/0b675418ba636127763e94e614e62364d6caa659/switch-001.js/clean/js/tests/ecma_3/Statements/switch-001.js