llvm-project

c4040f29 - [TSan] Fix warning when compiling with -Wmissing-designated-field-initializers (#163401)

[TSan] Fix warning when compiling with -Wmissing-designated-field-initializers (#163401) Currently we receive a warning when initializing a ThreadEventCallbacks when compiling with this flag: ``` llvm-project/compiler-rt/lib/tsan/rtl/tsan_platform_mac.cpp:252:3: warning: missing field 'start' initializer [-Wmissing-designated-field-initializers] 252 | }; | ^ ``` This patch explicitly initializes the missing fields to null, fixing the warning. rdar://162074310