sparse-llvm switch constants must all be same type as switch value

[Dibyendu Majumdar <mobile@xxxxxxxxxxxxxxx>]

Hi,

While investigating errors that occurred when compiling 'minilua' I
found that the sparse-llvm output for switch statements is hard coded
to generate int32 values even when the switch is on a different
integer type. I believe following fix is needed in output_op_switch():

 FOR_EACH_PTR(insn->multijmp_list, jmp) {
  if (jmp->begin == jmp->end) {  /* case N */
   LLVMAddCase(target,
    LLVMConstInt(LLVMTypeOf(sw_val), jmp->begin, 0),
    jmp->target->priv);
  } else if (jmp->begin < jmp->end) { /* case M..N */
   assert(0);
  }
 } END_FOR_EACH_PTR(jmp);
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