Paths reworked for Qt 5.5.

commit deffdaf9b14c78535a1290757d54082a51dd518f
Author: Paul Lemire <paul.lemire@kdab.com>
Date:   Thu Nov 19 12:18:02 2015 +0100

    GraphicsHelper: fix switch

    Change-Id: I9bc47d84407d1ed6fc5efd7d2acfff094855939c
    Reviewed-by: Andy Nichols <andy.nichols@theqtcompany.com>

--- src/render/backend/qgraphicscontext.cpp
+++ src/render/backend/qgraphicscontext.cpp
@@ -1032,15 +1032,15 @@ GLuint QGraphicsContext::byteSizeFromTyp
 GLint QGraphicsContext::glDataTypeFromAttributeDataType(QAttribute::DataType dataType)
 {
     switch (dataType) {
-    case QAttribute::DataType::Byte:
+    case QAttribute::Byte:
         return GL_BYTE;
-    case QAttribute::DataType::UnsignedByte:
+    case QAttribute::UnsignedByte:
         return GL_UNSIGNED_BYTE;
-    case QAttribute::DataType::Short:
+    case QAttribute::Short:
         return GL_SHORT;
-    case QAttribute::DataType::UnsignedShort:
+    case QAttribute::UnsignedShort:
         return GL_UNSIGNED_SHORT;
-    case QAttribute::DataType::Int:
+    case QAttribute::Int:
         return GL_INT;
     case QAttribute::UnsignedInt:
         return GL_UNSIGNED_INT;