Bug 1629495 - Disable four failing tests on debug. rs=bustage-fix

calendar/test/browser/preferences/browser.ini

@@ -1,5 +1,4 @@
 [default]
-head = ../head.js
 prefs =
   extensions.installDistroAddons=true
   mail.provider.suppress_dialog_on_startup=true
@@ -7,6 +6,7 @@ prefs =
   mail.winsearch.firstRunDone=true
   mailnews.start_page.override_url=about:blank
   mailnews.start_page.url=about:blank
+skip-if = debug
 subsuite = thunderbird
 
 [browser_alarmDefaultValue.js]

mail/test/browser/addrbook/browser.ini

@@ -10,5 +10,6 @@ subsuite = thunderbird
 tags = addrbook
 
 [browser_addressBook.js]
+skip-if = debug
 [browser_addressBookPanes.js]
 [browser_updateMailingList.js]

mail/test/browser/pref-window/browser.ini

@@ -5,6 +5,7 @@ prefs =
   mail.winsearch.firstRunDone=true
   mailnews.start_page.override_url=about:blank
   mailnews.start_page.url=about:blank
+skip-if = debug
 subsuite = thunderbird
 
 [browser_fontChooser.js]