Add QUrl to bootstrap set

The QML language server needs to use QUrl as that is what the language
server protocol uses to specify files.

As we cannot implicitly cast char to QChar in the bootstrap library, we
need to apply a build fix in qipaddress.cpp.

Change-Id: Ifaf8421457b1f734402b5aad965ecdec764a73e8
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>

Author: ulfhermannqt

src/corelib/io/qipaddress.cpp

@@ -253,7 +253,7 @@ const QChar *parseIp6(IPv6Address &address, const QChar *begin, const QChar *end
 
 static inline QChar toHex(uchar c)
 {
-    return QtMiscUtils::toHexLower(c);
+    return QChar::fromLatin1(QtMiscUtils::toHexLower(c));
 }
 
 void toString(QString &appendTo, IPv6Address address)

src/tools/bootstrap/bootstrap.pro

@@ -42,6 +42,7 @@ SOURCES += \
            ../../corelib/io/qfsfileengine.cpp \
            ../../corelib/io/qfsfileengine_iterator.cpp \
            ../../corelib/io/qiodevice.cpp \
+           ../../corelib/io/qipaddress.cpp \
            ../../corelib/io/qfiledevice.cpp \
            ../../corelib/io/qresource.cpp \
            ../../corelib/io/qtemporarydir.cpp \
@@ -50,6 +51,9 @@ SOURCES += \
            ../../corelib/io/qstandardpaths.cpp \
            ../../corelib/io/qloggingcategory.cpp \
            ../../corelib/io/qloggingregistry.cpp \
+           ../../corelib/io/qurl.cpp \
+           ../../corelib/io/qurlidna.cpp \
+           ../../corelib/io/qurlrecode.cpp \
            ../../corelib/kernel/qcoreapplication.cpp \
            ../../corelib/kernel/qcoreglobaldata.cpp \
            ../../corelib/kernel/qmetatype.cpp \