more catch by reference

Change-Id: I2db9f94a517f814ef0854190e6f1194501070409

sd/source/ui/accessibility/AccessibleDrawDocumentView.cxx

@@ -979,12 +979,12 @@ uno::Reference<XAccessible> AccessibleDrawDocumentView::GetSelAccContextInTable(
                     }
                 }
             }
-            catch ( lang::IndexOutOfBoundsException )
+            catch (const lang::IndexOutOfBoundsException&)
             {
                 uno::Reference<XAccessible> xEmpty;
                 return xEmpty;
             }
-            catch ( uno::RuntimeException )
+            catch (const uno::RuntimeException&)
             {
                 uno::Reference<XAccessible> xEmpty;
                 return xEmpty;
@@ -1014,7 +1014,7 @@ void AccessibleDrawDocumentView::UpdateAccessibleName (void)
                     sNewName += OUString::number(nPageNumber);
                 }
             }
-            catch (beans::UnknownPropertyException&)
+            catch (const beans::UnknownPropertyException&)
             {
             }
     }

svx/source/fmcomp/dbaobjectex.cxx

@@ -80,7 +80,7 @@ namespace svx
             if ( xProp.is() )
                 xProp->getPropertyValue("IsForm") >>= bForm;
         }
-        catch(Exception)
+        catch(const Exception&)
         {}
         AddFormat(getDescriptorFormatId(bForm));
     }

xmloff/source/text/txtfldi.cxx

@@ -3765,7 +3765,7 @@ void XMLAnnotationImportContext::EndElement()
                 {
                     GetImportHelper().InsertTextContent( xTextContent );
                 }
-                catch (lang::IllegalArgumentException)
+                catch (const lang::IllegalArgumentException&)
                 {
                     // ignore
                 }