message: fix mult by delta
diff: @main {
  a: float = const 2.0;
  b: float = const 10.0;
  - n: float = const 8.0;
  + n: float = const 100000.0;
  left : float = call @left_riemann a b n;
  print left;
  midpoint: float = call @midpoint_riemann a b n;
  i = fsub i one;
  jmp .while.header;
  .while.end:
  + sum = fmul sum delta;
  ret sum;
  }
  i = fsub i one;
  jmp .while.header;
  .while.end:
  + sum = fmul sum delta;
  ret sum;
  }
  i = fsub i one;
  jmp .while.header;
  .while.end:
  + sum = fmul sum delta;
  ret sum;
  }
  \ No newline at end of file
  