12166 resync smatch to 0.6.1-rc1-il-3

*** 1396,1405 ****
--- 1396,1408 ----
  
          switch (expr->type) {
          case EXPR_VALUE:
                  sval = sval_from_val(expr, expr->value);
                  break;
+         case EXPR_FVALUE:
+                 sval = sval_from_fval(expr, expr->fvalue);
+                 break;
          case EXPR_PREOP:
                  handle_preop_rl(expr, implied, recurse_cnt, &rl, &sval);
                  break;
          case EXPR_POSTOP:
                  get_rl_sval(expr->unop, implied, recurse_cnt, &rl, &sval);