IR: Rename 'use-list-order' options to 'uselistorder'

Rename options to be consistent with the name of `verify-uselistorder`,
and update `DEBUG_TYPE` (etc.) to be consistent.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234919 91177308-0d34-0410-b5e6-96231b3b80d8

lib/IR/UseListOrder.cpp

@@ -17,12 +17,12 @@
 using namespace llvm;
 
 static cl::opt<bool> PreserveBitcodeUseListOrder(
-    "preserve-bc-use-list-order",
+    "preserve-bc-uselistorder",
     cl::desc("Preserve use-list order when writing LLVM bitcode."),
     cl::init(true), cl::Hidden);
 
 static cl::opt<bool> PreserveAssemblyUseListOrder(
-    "preserve-ll-use-list-order",
+    "preserve-ll-uselistorder",
     cl::desc("Preserve use-list order when writing LLVM assembly."),
     cl::init(false), cl::Hidden);