message: [language] Fix typo in vector length check
  Closes:
  Approved by: sblackshear
diff: @@ -223,7 +223,7 @@ impl CostTable {
  #[inline]
  pub fn native_cost(&self, native_index: NativeCostIndex) -> &GasCost {
  precondition!(
  - native_index as u8 > 0 && native_index as u8 <= (self.instruction_table.len() as u8)
  + native_index as u8 > 0 && native_index as u8 <= (self.native_table.len() as u8)
  );
  &self.native_table[native_index as usize]
  }
  