InlinedVector: Disable CFI checking on the const GetInlinedData() path

as well. Some empty cases can trigger this.

See also:
https://clang.llvm.org/docs/ControlFlowIntegrity.html#bad-cast-checking.

PiperOrigin-RevId: 552846765
Change-Id: I6adb3c0c73efec841ffe8fdac4342f641c68ddbe

absl/container/inlined_vector_test.cc

@@ -1639,6 +1639,12 @@ TEST(DynamicVec, EmplaceBackAfterHeapAllocation) {
   EXPECT_EQ(v.size(), 1u);
 }
 
+TEST(DynamicVec, EmptyIteratorComparison) {
+  DynamicVec v;
+  EXPECT_EQ(v.begin(), v.end());
+  EXPECT_EQ(v.cbegin(), v.cend());
+}
+
 TEST(AllocatorSupportTest, Constructors) {
   using MyAlloc = CountingAllocator<int>;
   using AllocVec = absl::InlinedVector<int, 4, MyAlloc>;

absl/container/internal/inlined_vector.h

@@ -400,7 +400,7 @@ class Storage {
     return reinterpret_cast<Pointer<A>>(data_.inlined.inlined_data);
   }
 
-  ConstPointer<A> GetInlinedData() const {
+  ABSL_ATTRIBUTE_NO_SANITIZE_CFI ConstPointer<A> GetInlinedData() const {
     return reinterpret_cast<ConstPointer<A>>(data_.inlined.inlined_data);
   }