Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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diff --git a/js/src/tests/non262/Intl/README.txt b/js/src/tests/non262/Intl/README.txt
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+Integration Tests for ECMAScript Internationalization API
+=========================================================
+
+The tests in this directory test the integration of the ICU library
+(Internationalization Components for Unicode) into the implementation of the
+ECMAScript Internationalization API in SpiderMonkey.
+
+These integration tests are complementary to:
+
+- The Test402 test suite maintained by Ecma TC39, which tests conformance of
+  an implementation to standard ECMA-402, ECMAScript Internationalization API
+  Specification. Test402 is currently maintained as part of Test262, the overall
+  conformance test suite for ECMAScript; for more information, see
+  http://wiki.ecmascript.org/doku.php?id=test262:test262
+
+- The test suite of the ICU library, which tests the implementation of ICU
+  itself and correct interpretation of the locale data it obtains from CLDR
+  (Common Locale Data Repository). For information on ICU, see
+  http://site.icu-project.org
+
+The integration tests check for a variety of locales and options whether the
+results are localized in a way that indicates correct integration with ICU.
+Such tests are somewhat fragile because the underlying locale data reflects
+real world usage and is therefore subject to change. When the ICU library used
+by Mozilla is upgraded, it is likely that some of the integration tests will
+fail because of locale data changes; however, others might fail because of
+actual software bugs. Failures therefore have to be examined carefully.