Bug 168172 Add the get() and set() functions of HideDetail parameter on IGroup
Add the get() and set() functions of HideDetail parameter on IGroup, and thus enable the hidedetail shifting on the Group through eventhandler.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/script/internal/element/Group.java
return ( (GroupHandle) handle ).getTocExpression( );
	}
	public void setTocExpression( String expression ) throws ScriptException
	{
		try
		{
			( (GroupHandle) handle ).setTocExpression( expression );
		}
		catch ( SemanticException e )
		{
			throw new ScriptException( e.getLocalizedMessage( ) );
		}
	}
	public String getSortType( )
	{
		return ( (GroupHandle) handle ).getSortType( );
	}
	public void setSortType( String sortType ) throws ScriptException
	{
		try
		{
			( (GroupHandle) handle ).setSortType( sortType );
		}
		catch ( SemanticException e )
		{
			throw new ScriptException( e.getLocalizedMessage( ) );
		}
	}
}