Implement changes from Chris's feedback.
Finish converting lib/Target.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75043 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMJITInfo.cpp b/lib/Target/ARM/ARMJITInfo.cpp
index bc28919..c9e04c9 100644
--- a/lib/Target/ARM/ARMJITInfo.cpp
+++ b/lib/Target/ARM/ARMJITInfo.cpp
@@ -123,12 +123,12 @@
   //   ldr pc, [pc,#-4]
   //   <addr>
   if (!sys::Memory::setRangeWritable((void*)StubAddr, 8)) {
-    llvm_report_error("ERROR: Unable to mark stub writable");
+    LLVM_UNREACHABLE("ERROR: Unable to mark stub writable");
   }
   *(intptr_t *)StubAddr = 0xe51ff004;  // ldr pc, [pc, #-4]
   *(intptr_t *)(StubAddr+4) = NewVal;
   if (!sys::Memory::setRangeExecutable((void*)StubAddr, 8)) {
-    llvm_report_error("ERROR: Unable to mark stub executable");
+    LLVM_UNREACHABLE("ERROR: Unable to mark stub executable");
   }
 }