[clang] [CIR] Upstream a batch of passing tests from CIR-Incubator (PR #157333)

[Amr Hesham via cfe-commits]

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In-Reply-To: <llvm.org/llvm/llvm-project/pull/157333 at github.com>


================
@@ -0,0 +1,27 @@
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o -  | FileCheck %s
+
+void empty();
+
+void check_noproto_ptr() {
+  void (*fun)(void) = empty;
+}
+
+// CHECK: cir.func no_proto dso_local @check_noproto_ptr()
+// CHECK:    %[[ALLOC:.*]] = cir.alloca !cir.ptr<!cir.func<()>>, !cir.ptr<!cir.ptr<!cir.func<()>>>, ["fun", init] {alignment = 8 : i64}
----------------
AmrDeveloper wrote:

```suggestion
// CHECK:    %[[ALLOC:.*]] = cir.alloca !cir.ptr<!cir.func<()>>, !cir.ptr<!cir.ptr<!cir.func<()>>>, ["fun", init]
```

We just forgot this :D

https://github.com/llvm/llvm-project/pull/157333