Bug 82743 [Markers] improved problem filter needed (OR clauses)
when working with large workspaces I find the current problems filter not powerful enough. If I were able to AND and OR the conditions available from the UI then I would solve all my use cases. my most needed one is : I would like to see ERRORS anywhere in the workspace OR WARNINGS in the current selected project
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/DialogProblemFilter.java
org.eclipse.ui.views.markers.internal.DialogMarkerFilter {
    private DescriptionGroup descriptionGroup;
    private SeverityGroup severityGroup;
    private class DescriptionGroup {
        private Label descriptionLabel;
        private Combo combo;
        private Text description;
        private String contains = Messages.getString("filtersDialog.contains"); 
        private String doesNotContain = Messages
                .getString("filtersDialog.doesNotContain"); 
        /**
         * Create a descriptor group.
         * @param parent
         */
        public DescriptionGroup(Composite parent) {
            descriptionLabel = new Label(parent, SWT.NONE);
            descriptionLabel.setFont(parent.getFont());
            descriptionLabel.setText(Messages.getString("filtersDialog.descriptionLabel")); 
            combo = new Combo(parent, SWT.READ_ONLY);