[llvm] r338739 - Fix a couple of warnings.

[Zachary Turner via llvm-commits]

Author: zturner
Date: Thu Aug  2 10:18:01 2018
New Revision: 338739

URL: http://llvm.org/viewvc/llvm-project?rev=338739&view=rev
Log:
Fix a couple of warnings.

Modified:
    llvm/trunk/lib/Demangle/MicrosoftDemangle.cpp

Modified: llvm/trunk/lib/Demangle/MicrosoftDemangle.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Demangle/MicrosoftDemangle.cpp?rev=338739&r1=338738&r2=338739&view=diff
==============================================================================
--- llvm/trunk/lib/Demangle/MicrosoftDemangle.cpp (original)
+++ llvm/trunk/lib/Demangle/MicrosoftDemangle.cpp Thu Aug  2 10:18:01 2018
@@ -885,6 +885,7 @@ namespace {
 class Demangler : public NameResolver {
 public:
   Demangler() = default;
+  virtual ~Demangler() = default;
 
   // You are supposed to call parse() first and then check if error is true.  If
   // it is false, call output() to write the formatted name to the given stream.
@@ -2039,7 +2040,7 @@ Demangler::demangleTemplateParameterList
 
 StringView Demangler::resolve(StringView N) {
   assert(N.size() == 1 && isdigit(N[0]));
-  int Digit = N[0] - '0';
+  size_t Digit = N[0] - '0';
   if (Digit >= BackRefCount)
     return N;
   return BackReferences[Digit];