[CIR][NFC] Fix forrange.cpp test (llvm#144123)

A recent change has cause the begin and end iterators in the
forrange.cpp CIR codegen test to be marked as 'init' causing the test to
fail. This change fixes the checks in the test.

Author: andykaylor

clang/test/CIR/CodeGen/forrange.cpp

@@ -115,8 +115,8 @@ void for_range3() {
 // CIR:    %[[C_ADDR:.*]] = cir.alloca !rec_C3{{.*}} ["c"]
 // CIR:    cir.scope {
 // CIR:      %[[RANGE_ADDR:.*]] = cir.alloca !cir.ptr<!rec_C3>{{.*}} ["__range1", init, const]
-// CIR:      %[[BEGIN_ADDR:.*]] = cir.alloca !rec_Iterator, !cir.ptr<!rec_Iterator>{{.*}} ["__begin1"]
-// CIR:      %[[END_ADDR:.*]] = cir.alloca !rec_Iterator, !cir.ptr<!rec_Iterator>{{.*}} ["__end1"]
+// CIR:      %[[BEGIN_ADDR:.*]] = cir.alloca !rec_Iterator, !cir.ptr<!rec_Iterator>{{.*}} ["__begin1", init]
+// CIR:      %[[END_ADDR:.*]] = cir.alloca !rec_Iterator, !cir.ptr<!rec_Iterator>{{.*}} ["__end1", init]
 // CIR:      %[[E_ADDR:.*]] = cir.alloca !cir.ptr<!rec_Element>{{.*}} ["e", init, const]
 // CIR:      cir.store{{.*}} %[[C_ADDR]], %[[RANGE_ADDR]]
 // CIR:      cir.for : cond {