Clean up QZipReader::FileInfo

- don't define special member functions if the compiler-generated
  ones are just fine (inhibits move semantics)
- implement all remaining methods inline
- unexport
- remove unused (and, to add insult to injury, never init'ed)
  d-pointer. This is private API. No need for a d-pointer,
  much less an unused one.

Change-Id: I6979cb5103a361c0313c252d3bf7073a3c47addd
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>

src/gui/text/qzip.cpp

@@ -411,38 +411,6 @@ struct FileHeader
 };
 Q_DECLARE_TYPEINFO(FileHeader, Q_MOVABLE_TYPE);
 
-QZipReader::FileInfo::FileInfo()
-    : isDir(false), isFile(false), isSymLink(false), crc(0), size(0)
-{
-}
-
-QZipReader::FileInfo::~FileInfo()
-{
-}
-
-QZipReader::FileInfo::FileInfo(const FileInfo &other)
-{
-    operator=(other);
-}
-
-QZipReader::FileInfo& QZipReader::FileInfo::operator=(const FileInfo &other)
-{
-    filePath = other.filePath;
-    isDir = other.isDir;
-    isFile = other.isFile;
-    isSymLink = other.isSymLink;
-    permissions = other.permissions;
-    crc = other.crc;
-    size = other.size;
-    lastModified = other.lastModified;
-    return *this;
-}
-
-bool QZipReader::FileInfo::isValid() const
-{
-    return isDir || isFile || isSymLink;
-}
-
 class QZipPrivate
 {
 public:

src/gui/text/qzipreader_p.h

@@ -70,13 +70,14 @@ public:
     bool isReadable() const;
     bool exists() const;
 
-    struct Q_GUI_EXPORT FileInfo
+    struct FileInfo
     {
-        FileInfo();
-        FileInfo(const FileInfo &other);
-        ~FileInfo();
-        FileInfo &operator=(const FileInfo &other);
-        bool isValid() const;
+        FileInfo() Q_DECL_NOTHROW
+            : isDir(false), isFile(false), isSymLink(false), crc(0), size(0)
+        {}
+
+        bool isValid() const Q_DECL_NOTHROW { return isDir || isFile || isSymLink; }
+
         QString filePath;
         uint isDir : 1;
         uint isFile : 1;
@@ -85,7 +86,6 @@ public:
         uint crc;
         qint64 size;
         QDateTime lastModified;
-        void *d;
     };
 
     QList<FileInfo> fileInfoList() const;