List<JLocalRef> catchArgs = x.getCatchArgs();
List<JBlock> catchBlocks = x.getCatchBlocks();
for (int i = 0, c = catchArgs.size(); i < c; ++i) {
JLocalRef arg = catchArgs.get(i);
JBlock catchBlock = catchBlocks.get(i);
JsCatch jsCatch = new JsCatch(x.getSourceInfo(), peek(),
arg.getTarget().getName());
JsParameter jsParam = jsCatch.getParameter();
names.put(arg.getTarget(), jsParam.getName());
catchMap.put(catchBlock, jsCatch);
push(jsCatch.getScope());
accept(catchBlock);
pop();
}
// TODO: normalize this so it's never null?