Bump LLVM to 88c4ef2f9fc0cda90c8452bc1c46844aaa722a3e (#347)

This includes llvm/llvm-project#137581 which
makes it a bit nicer to deal with verification failures, some of which
come from inline assembly and would be difficult to fix within LLVM.

Author: boomanaiden154

.github/workflows/main.yaml

@@ -19,7 +19,7 @@ name: Gematria CI
 # TODO(virajbshah): Find a better way to keep these two in sync without the
 # need to update one manually every time the other is changed.
 env:
-  LLVM_COMMIT: 0bdc9e6d080009dc87b9458181c5a41cc13f26ae
+  LLVM_COMMIT: 88c4ef2f9fc0cda90c8452bc1c46844aaa722a3e
 
 on:
   push:

WORKSPACE

@@ -196,9 +196,9 @@ new_git_repository(
 # The pinned version of LLVM, and its SHA256 hash. The `LLVM_COMMIT` variable in
 # `.github/workflows/main.yaml` must be updated to match this everytime it is
 # changed.
-LLVM_COMMIT = "0bdc9e6d080009dc87b9458181c5a41cc13f26ae"
+LLVM_COMMIT = "88c4ef2f9fc0cda90c8452bc1c46844aaa722a3e"
 
-LLVM_SHA256 = "ad722c9b456b6ca5f63681bb81cac9d69833695b3cd46b4878de15f7aba43160"
+LLVM_SHA256 = "163cc60d594aebef8a67088c81d56d19ea90d546de5212b5b1edc1ba4abc662c"
 
 http_archive(
     name = "llvm-raw",