Fix uninitialized variables. Found by ubsan.

llvm-svn: 178913

lld/lib/Core/TargetInfo.cpp

@@ -25,6 +25,7 @@ TargetInfo::TargetInfo()
   , _forceLoadAllArchives(false)
   , _printRemainingUndefines(true)
   , _allowRemainingUndefines(false)
+  , _logInputFiles(false)
 {
 }
 

lld/lib/ReaderWriter/YAML/ReaderWriterYAML.cpp

@@ -866,7 +866,7 @@ struct MappingTraits<const lld::DefinedAtom*> {
   class NormalizedAtom : public lld::DefinedAtom {
   public:
     NormalizedAtom(IO &io)
-      : _file(fileFromContext(io)), _name(), _refName(),
+      : _file(fileFromContext(io)), _name(), _refName(), _contentType(),
         _alignment(0), _content(), _references() {
       static uint32_t ordinalCounter = 1;
       _ordinal = ordinalCounter++;