* Fixed so all headers that are supposed to be included independently can compile (there are headers that must be included through other headers)
* Added HEADER_UNIT_SKIP to headers that must be included through others
* Added HEADER_UNIT_UNSUPPORTED to headers that are not supported by platform but is part of the include list anyway (files in Clang folder and pthread files).
* Added HEADER_UNIT_UNSUPPORTED to headers that have bad dependencies and include files from modules they don't depend on. (KeyChainUtilities.h and PackageWriter.h)
#preflight 637281309e3bea8079feb733
#rb devin.doucette
[CL 23127795 by henrik karlsson in ue5-main branch]
grouped inherited LLM tag, mem tag and trace metadata into FInheritedContext to simplify their usage, avoid forgetting using all of them together, and to hide the ugly conditional compilation. Added FInheritedContext to higher level tasks instead of the low-level tasks to allow batch task launch to capture the inherited context once per batch
#rb ionut.matasaru
#preflight 633c47792f4bf32d31687192
[CL 22331272 by Andriy Tylychko in ue5-main branch]
Headers are updated to contain any missing #includes needed to compile and #includes are sorted. Nothing is removed.
#ushell-cherrypick of 21065896 by bryan.sefcik
#preflight 62d4b1a5a6141b6adfb0c892
#jira
#ROBOMERGE-OWNER: Bryan.sefcik
#ROBOMERGE-AUTHOR: bryan.sefcik
#ROBOMERGE-SOURCE: CL 21150156 via CL 21151754 via CL 21154719
#ROBOMERGE-BOT: UE5 (Release-Engine-Staging -> Main) (v972-20964824)
#ROBOMERGE-CONFLICT from-shelf
[CL 21181076 by Bryan sefcik in ue5-main branch]
Core public headers still will contain CoreMinimal.h if any included it before my IWYU changes.
#preflight 62c73594756222ced4e48707
[CL 20991367 by bryan sefcik in ue5-main branch]
Things to note regarding this pass:
* No includes are currently being removed from public headers.
* Any private file that has a #if is currently not being updated.
#rb Devin Doucette and Marc Audy
#preflight 62c62086756222ced497ff95
#preflight 62c626d12f2d04691814d331
#preflight 62c630107e606620fdd64e31
#preflight 62c635c6756222ced49a13cf
[CL 20979027 by bryan sefcik in ue5-main branch]
Tasks are allocated by ConcurrentLinearAllocator that have a problem with long-living allocs as a single alloc can hold an entire memory page thus driving total mem usage up. `CreateCompletionHandle()` creates a task event that uses an allocator that doesn't have this issue. This task event depends on the parent task and can be used to wait for this task completion
#preflight 62b0a5e1640ffd8ee9c0e5b5
#rb francis.hurteau
[CL 20740243 by Andriy Tylychko in ue5-main branch]
Parent tasks visualisation comes in the following CL
#rb catalin.dragoiu
#preflight 62ac4ea2fc406f218cc6caab
[CL 20700745 by Andriy Tylychko in ue5-main branch]
