Integrate LLVM at llvm/llvm-project@84adaabf3e04

Updates LLVM usage to match
[84adaabf3e04](https://github.com/llvm/llvm-project/commit/84adaabf3e04)

PiperOrigin-RevId: 402344140
Change-Id: Idc808309b5994e05ae6e8cc74d175936632b57a1
diff --git a/third_party/llvm/workspace.bzl b/third_party/llvm/workspace.bzl
index 0642735..48ff063 100644
--- a/third_party/llvm/workspace.bzl
+++ b/third_party/llvm/workspace.bzl
@@ -4,8 +4,8 @@
 
 def repo(name):
     """Imports LLVM."""
-    LLVM_COMMIT = "483db1c706864d0940206228dfe64bdcd17faa4e"
-    LLVM_SHA256 = "66952fc7b618820fa7787b3690cb1a278172413ea59beb4eac3973df86b798d5"
+    LLVM_COMMIT = "84adaabf3e04d1938a137b1299a677d2fa489383"
+    LLVM_SHA256 = "bb614bdeab4fe3448333c3d0e8272dc40fcbe2bd7adcb31a0e9c1682af6b2054"
 
     tf_http_archive(
         name = name,