Merge commit '1b32844df4f7' from apple/main into swift/next

Author: git apple-llvm automerger

lldb/CMakeLists.txt

@@ -4,6 +4,10 @@ if(POLICY CMP0075)
   cmake_policy(SET CMP0075 NEW)
 endif()
 
+if(POLICY CMP0077)
+  cmake_policy(SET CMP0077 NEW)
+endif()
+
 # Add path for custom modules.
 set(CMAKE_MODULE_PATH
   ${CMAKE_MODULE_PATH}