[CMake] Update MinSizeRel configuration for Apple platforms...

...and use it as a default for one of them.

Addresses rdar://142820419

Author: edymtt

Runtimes/Core/cmake/caches/Vendors/Apple/apple-common.cmake

@@ -12,3 +12,7 @@ set(SwiftCore_ENABLE_VECTOR_TYPES ON CACHE BOOL "")
 set(SwiftCore_ENABLE_RUNTIME_FUNCTION_COUNTERS ON CACHE BOOL "")
 set(SwiftCore_ENABLE_BACKDEPLOYMENT_SUPPORT ON CACHE BOOL "")
 set(SwiftCore_ENABLE_FILESYSTEM_SUPPORT ON CACHE BOOL "")
+
+set(CMAKE_CXX_FLAGS_MINSIZEREL "-Os -g -DNDEBUG" CACHE STRING "")
+set(CMAKE_C_FLAGS_MINSIZEREL "-Os -g -DNDEBUG" CACHE STRING "")
+set(CMAKE_Swift_FLAGS_MINSIZEREL "-Osize -g" CACHE STRING "")

Runtimes/Core/cmake/caches/Vendors/Apple/arm64-BridgeOS.cmake

@@ -8,5 +8,6 @@ set(CMAKE_Swift_COMPILER_TARGET "arm64-apple-bridgeos${CMAKE_OSX_DEPLOYMENT_TARG
 
 set(SwiftCore_ARCH_SUBDIR arm64)
 set(SwiftCore_PLATFORM_SUBDIR freestanding)
+set(CMAKE_BUILD_TYPE MinSizeRel CACHE STRING "")
 
 include("${CMAKE_CURRENT_LIST_DIR}/apple-common.cmake")