Fix build

Author: nyalldawson

src/core/qgsexpression.cpp

@@ -1027,7 +1027,7 @@ static QVariant fcnFeature( const QVariantList&, const QgsExpressionContext* con
   if ( !context )
     return QVariant();
 
-  return context->feature();
+  return context->variable( QgsExpressionContext::EXPR_FEATURE );
 }
 static QVariant fcnAttribute( const QVariantList& values, const QgsExpressionContext*, QgsExpression* parent )
 {

src/core/symbology-ng/qgssymbolv2.cpp

@@ -738,7 +738,7 @@ void QgsSymbolV2::renderFeature( const QgsFeature& feature, QgsRenderContext& co
   {
     context.expressionContext().appendScope( mSymbolRenderContext->expressionContextScope() );
     QgsExpressionContextUtils::updateSymbolScope( this, mSymbolRenderContext->expressionContextScope() );
-    mSymbolRenderContext->expressionContextScope()->addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_GEOMETRY_PART_COUNT, segmentizedGeometry->geometryPartCount(), true ) );
+    mSymbolRenderContext->expressionContextScope()->addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_GEOMETRY_PART_COUNT, segmentizedGeometry->geometry()->partCount(), true ) );
     mSymbolRenderContext->expressionContextScope()->addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_GEOMETRY_PART_NUM, 1, true ) );
   }