[clang] [CIR] Add support for C++ conversion operators (PR #151066)

[Bruno Cardoso Lopes via cfe-commits]

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@@ -0,0 +1,130 @@
+// RUN: %clang_cc1 -std=c++11 -triple aarch64-none-linux-android21 -fclangir -emit-cir %s -o %t.cir
+// RUN: FileCheck --check-prefix=CIR --input-file=%t.cir %s
+// RUN: %clang_cc1 -std=c++11 -triple aarch64-none-linux-android21 -fclangir -emit-llvm %s -o %t-cir.ll
+// RUN: FileCheck --check-prefix=LLVM --input-file=%t-cir.ll %s
+// RUN: %clang_cc1 -std=c++11 -triple aarch64-none-linux-android21 -emit-llvm %s -o %t.ll
+// RUN: FileCheck --check-prefix=OGCG --input-file=%t.ll %s
+
+struct inline_operator {
+    operator int() const {
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bcardosolopes wrote:

maybe indent this to 2 spaces to follow the more common pattern?

https://github.com/llvm/llvm-project/pull/151066