Update prebuilt Clang to r365631c1 from Android.

The version we had was segfaulting.

Bug: 132420445
Change-Id: Icb45a6fe0b4e2166f7895e669df1157cec9fb4e0
diff --git a/linux-x64/clang/include/llvm/IR/ConstantFolder.h b/linux-x64/clang/include/llvm/IR/ConstantFolder.h
index 1971cb8..5a5cabf 100644
--- a/linux-x64/clang/include/llvm/IR/ConstantFolder.h
+++ b/linux-x64/clang/include/llvm/IR/ConstantFolder.h
@@ -134,6 +134,10 @@
     return ConstantExpr::getNot(C);
   }
 
+  Constant *CreateUnOp(Instruction::UnaryOps Opc, Constant *C) const {
+    return ConstantExpr::get(Opc, C);
+  }
+
   //===--------------------------------------------------------------------===//
   // Memory Instructions
   //===--------------------------------------------------------------------===//