[CMake] Turn on LLVM_ENABLE_BACKTRACE for Apple stage1 compiler (#141872)

Author: cachemeifyoucan

clang/cmake/caches/Apple-stage1.cmake

@@ -18,7 +18,7 @@ set(COMPILER_RT_INCLUDE_TESTS OFF CACHE BOOL "")
 set(COMPILER_RT_BUILD_SANITIZERS OFF CACHE BOOL "")
 set(CMAKE_MACOSX_RPATH ON CACHE BOOL "")
 set(LLVM_ENABLE_ZLIB OFF CACHE BOOL "")
-set(LLVM_ENABLE_BACKTRACES OFF CACHE BOOL "")
+set(LLVM_ENABLE_BACKTRACES ON CACHE BOOL "")
 set(CLANG_PLUGIN_SUPPORT OFF CACHE BOOL "")
 set(CLANG_SPAWN_CC1 ON CACHE BOOL "")
 set(CLANG_BOOTSTRAP_PASSTHROUGH