preprocessor: make PPToken inlineable.

Change-Id: Ie86b4ff4a6f1987a15fcc46e8de9db487af1729a
Reviewed-by: hjk <qthjk@ovi.com>

src/libs/cplusplus/PPToken.cpp

@@ -32,9 +32,6 @@ int ByteArrayRef::count(char ch) const
     return num;
 }
 
-PPToken::PPToken()
-{}
-
 void PPToken::squeeze()
 {
     if (isValid()) {

src/libs/cplusplus/PPToken.h

@@ -73,7 +73,7 @@ inline bool operator!=(const QByteArray &other, const ByteArrayRef &ref)
 class CPLUSPLUS_EXPORT PPToken: public Token
 {
 public:
-    PPToken();
+    PPToken() {}
 
     PPToken(const QByteArray &src)
         : m_src(src)