simplify the cfg after in case we created empty blocks

Author: vezenovm

compiler/noirc_evaluator/src/ssa.rs

@@ -118,6 +118,7 @@ pub(crate) fn optimize_into_acir(
     .run_pass(Ssa::remove_enable_side_effects, "After EnableSideEffectsIf removal:")
     .run_pass(Ssa::fold_constants_using_constraints, "After Constraint Folding:")
     .run_pass(Ssa::dead_instruction_elimination, "After Dead Instruction Elimination:")
+    .run_pass(Ssa::simplify_cfg, "After Simplifying:")
     .run_pass(Ssa::array_set_optimization, "After Array Set Optimizations:")
     .finish();