Fix build.


git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@125379 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp b/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
index 4d96870..74fc534 100644
--- a/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
+++ b/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
@@ -150,6 +150,7 @@
                                             dwarf_r0 + n, 
                                             0 };
 
+    bool success;
     uint32_t data = ReadRegisterUnsigned (eRegisterKindDWARF, dwarf_r0 + n, 0, &success);
                   
     if (!success)