fix(cfg): append switch case condition to correct block

When a switch case test contains a logical expression (|| or &&),
visiting the expression creates multiple CFG blocks for short-circuit
evaluation and changes current_node_ix. The condition instruction
must be appended to the block BEFORE visiting the expression, not
after.

This matches the pattern used in visit_if_statement and ensures the
condition instruction is placed in the case entry block, making it
discoverable by code that identifies case test blocks.

Author: camc314

crates/oxc_semantic/src/builder.rs

@@ -1481,12 +1481,14 @@ impl<'a> Visit<'a> for SemanticBuilder<'a> {
         self.enter_node(kind);
 
         if let Some(expr) = &case.test {
+            #[cfg(feature = "cfg")]
+            let condition_block_ix = control_flow!(self, |cfg| cfg.current_node_ix);
             #[cfg(feature = "cfg")]
             self.record_ast_nodes();
             self.visit_expression(expr);
             #[cfg(feature = "cfg")]
             let test_node_id = self.retrieve_recorded_ast_node();
-            control_flow!(self, |cfg| cfg.append_condition_to(cfg.current_node_ix, test_node_id));
+            control_flow!(self, |cfg| cfg.append_condition_to(condition_block_ix, test_node_id));
         }
 
         /* cfg */