CompatHelper: bump compat for LLVM to 9, (keep existing compat)

Author: CompatHelper Julia

Project.toml

@@ -21,7 +21,7 @@ StrideArraysCore = "7792a7ef-975c-4747-a70f-980b88e8d1da"
 Adapt = "4"
 BFloat16s = "0.5"
 CUDA = "5.3.1"
-LLVM = "6, 7, 8"
+LLVM = "6, 7, 8, 9"
 LLVMLoopInfo = "1"
 LayoutPointers = "0.1"
 MacroTools = "0.5"