Specifically notify llvm passes

Author: staticfloat

Diff for: .buildkite/llvm_passes.yml

@@ -23,6 +23,9 @@ steps:
       make -j$${JULIA_NUM_CORES} -C test/clangsa
       make -j$${JULIA_NUM_CORES} -C src analyzegc
     timeout_in_minutes: 60
+    notify:
+      - github_commit_status:
+          context: "analyzegc"
 
   - label: "llvmpasses"
     key: llvmpasses
@@ -40,3 +43,6 @@ steps:
       make -j$${JULIA_NUM_CORES} -C src install-analysis-deps
       make -j$${JULIA_NUM_CORES} -C test/llvmpasses
     timeout_in_minutes: 60
+    notify:
+      - github_commit_status:
+          context: "llvm passes"