[Offload] Rename and move 'clang-offload-packager' -> 'llvm-offload-binary' (#161438)

Summary:
This tool is pretty much a generic interface into creating and managing
the offloading binary format. The binary format itself is just a fat
binary block used to create heterogeneous objects. This should be made
more general than just `clang` since it's likely going to be used for
larger offloading projects and is the expected way to extract
heterogeneous objects from offloading code.

Relatively straightforward rename, a few tweaks and documentation
changes. Kept in `clang-offload-packager` for legacy compatibility as we
looked this tool up by name in places, will probably delete it next
release.

1 files changed, 10 insertions, 0 deletions

diff --git a/llvm/test/tools/llvm-offload-binary/llvm-offload-binary.ll b/llvm/test/tools/llvm-offload-binary/llvm-offload-binary.ll
new file mode 100644
index 0000000..b196c24
--- /dev/null
+++ b/llvm/test/tools/llvm-offload-binary/llvm-offload-binary.ll
@@ -0,0 +1,10 @@
+; RUN: llvm-offload-binary -o %t --image=file=%s,arch=abc,triple=x-y-z
+; RUN: llvm-objdump --offloading %t | FileCheck %s
+; RUN: llvm-offload-binary %t --image=file=%t2,arch=abc,triple=x-y-z
+; RUN: diff %s %t2
+
+;      CHECK: OFFLOADING IMAGE [0]:
+; CHECK-NEXT: kind            <none>
+; CHECK-NEXT: arch            abc
+; CHECK-NEXT: triple          x-y-z
+; CHECK-NEXT: producer        none