Bug 1819822 - Make intl buildable outside of a unified build environment r=andi

Depends on D171428

Differential Revision: https://phabricator.services.mozilla.com/D171429

intl/components/src/BidiClass.h

@@ -4,6 +4,8 @@
 #ifndef intl_components_BidiClass_h_
 #define intl_components_BidiClass_h_
 
+#include <cstdint>
+
 namespace mozilla::intl {
 
 /**

intl/lwbrk/WordBreaker.cpp

@@ -8,6 +8,7 @@
 #include "mozilla/StaticPrefs_layout.h"
 #include "nsComplexBreaker.h"
 #include "nsTArray.h"
+#include "nsUnicodeProperties.h"
 
 using mozilla::intl::Script;
 using mozilla::intl::UnicodeProperties;

intl/lwbrk/moz.build

@@ -43,5 +43,3 @@ else:
     ]
 
 FINAL_LIBRARY = "xul"
-
-REQUIRES_UNIFIED_BUILD = True