Fixes a regression caused by an incomplete backport of converting the
Expression semantic pass to a Visitor.

gcc/d/ChangeLog:

	PR d/95250
	* dmd/expressionsem.c (class ExpressionSemanticVisitor): Return early
	if error occurred during semantic of DivExp.

gcc/testsuite/ChangeLog:

	PR d/95250
	* gdc.dg/pr95250.d: New test.

(cherry picked from commit 1d19c9cd3dd99ba8885c0fc93223918399f73939)