message: Fix some comments pointed out by Leonard Mosescu.
  These were originally pointed out in D53511 but I forgot
  to incorporate them in my patch.
diff: @@ -310,7 +310,7 @@ static llvm::StringRef GetSimpleTypeName(SimpleTypeKind kind) {
  return "char";
  case SimpleTypeKind::SignedCharacter:
  case SimpleTypeKind::SByte:
  - return "signed chr";
  + return "signed char";
  case SimpleTypeKind::Character16:
  return "char16_t";
  case SimpleTypeKind::Character32:
  @@ -332,7 +332,7 @@ static llvm::StringRef GetSimpleTypeName(SimpleTypeKind kind) {
  return "__int128";
  case SimpleTypeKind::Int64:
  case SimpleTypeKind::Int64Quad:
  - return "__int64";
  + return "int64_t";
  case SimpleTypeKind::Int32:
  return "int";
  case SimpleTypeKind::Int16:
  @@ -341,7 +341,7 @@ static llvm::StringRef GetSimpleTypeName(SimpleTypeKind kind) {
  return "unsigned __int128";
  case SimpleTypeKind::UInt64:
  case SimpleTypeKind::UInt64Quad:
  - return "unsigned __int64";
  + return "uint64_t";
  case SimpleTypeKind::HResult:
  return "HRESULT";
  case SimpleTypeKind::UInt32:
  @@ -644,7 +644,7 @@ lldb::TypeSP SymbolFileNativePDB::CreateSimpleType(TypeIndex ti) {
  TypeSP direct_sp = GetOrCreateType(ti.makeDirect());
  CompilerType ct = direct_sp->GetFullCompilerType();
  ct = ct.GetPointerType();
  - uint32_t pointer_size = 4;
  + uint32_t pointer_size = 0;
  switch (ti.getSimpleMode()) {
  case SimpleTypeMode::FarPointer32:
  case SimpleTypeMode::NearPointer32:
  