[3.10] gh-101400: Fix incorrect lineno in exception message on contin…

[corona10]

…ue/break which are not in a loop (GH-101413).

(cherry picked from commit e867c1b)

Co-authored-by: Dong-hee Na donghee.na@python.org

• Issue: Negative line number in stacktrace exception #101400

[corona10]

cpython/Python/compile.c

Lines 1841 to 1846 in 17b038c

	ADDOP(c, POP_TOP);
	/* The exit block should appear to execute after the
	* statement causing the unwinding, so make the unwinding
	* instruction artificial */
	c->u->u_lineno = -1;
	return 1;

@iritkatriel

For 3.10, it only modifies the u_lineno, so just restoring the u_lineno will be enough WDYT?