StringMap::first() is about to start returning a StringRef, adapt.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135166 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Basic/Targets.cpp

@@ -3055,7 +3055,8 @@ TargetInfo *TargetInfo::CreateTargetInfo(Diagnostic &Diags,
   Opts.Features.clear();
   for (llvm::StringMap<bool>::const_iterator it = Features.begin(),
          ie = Features.end(); it != ie; ++it)
-    Opts.Features.push_back(std::string(it->second ? "+" : "-") + it->first());
+    Opts.Features.push_back(std::string(it->second ? "+" : "-") +
+                            llvm::StringRef(it->first()).str());
   Target->HandleTargetFeatures(Opts.Features);
 
   return Target.take();

lib/Serialization/ASTWriter.cpp

@@ -1174,8 +1174,8 @@ void ASTWriter::WriteStatCache(MemorizeStatCalls &StatCalls) {
   for (MemorizeStatCalls::iterator Stat = StatCalls.begin(),
                                 StatEnd = StatCalls.end();
        Stat != StatEnd; ++Stat, ++NumStatEntries) {
-    const char *Filename = Stat->first();
-    Generator.insert(Filename, Stat->second);
+    llvm::StringRef Filename = Stat->first();
+    Generator.insert(Filename.data(), Stat->second);
   }
 
   // Create the on-disk hash table in a buffer.