Inconsistent parsing errors with nested comments and trailing semicolon

[benny779]

Description

There is inconsistent and unexpected behavior when parsing expressions that include nested comments.
Depending on whether a semicolon is present after the comment block, different and misleading errors are thrown.

Reproduction

Input A

/*
  a ?? b;
  /* nested comment */
  a ?? b;
*/
1

Error

The left side of the "/" operator must evaluate to a number

Input B

/*
  a ?? b;
  /* nested comment */
  a ?? b;
*/;
1

Error

Semicolon ";" cannot be used here. Semicolons are used to separate sub-expressions in top-level mappings, parenthesis blocks and function definitions.

[benny779]

The code to fix is here.