Related: tdf#164276 Add English (Guyana) [0xBC09] {en-GY} mapping

Change-Id: I87a3d6f7bb8ea70578312ac2894c6badac48652b
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/180274
Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Jenkins

i18nlangtag/source/isolang/isolang.cxx

@@ -684,6 +684,7 @@ IsoLanguageCountryEntry const aImplIsoLangEntries[] =
     { LANGUAGE_USER_MORISYEN,              "mfe", "MU", k0    },
     { LANGUAGE_USER_FRENCH_GUINEA,          "fr", "GN", k0    },
     { LANGUAGE_USER_ABKHAZ,                 "ab", ""  , k0    },
+    { LANGUAGE_USER_ENGLISH_GUYANA,         "en", "GY", k0    },
     // Add new languages ^^^ there.
     { LANGUAGE_MULTIPLE,                   "mul", ""  , k0    },    // multiple languages, many languages are used
     { LANGUAGE_UNDETERMINED,               "und", ""  , k0    },    // undetermined language, language cannot be identified

include/i18nlangtag/lang.h

@@ -794,6 +794,8 @@ namespace o3tl
 #define LANGUAGE_USER_SANTALI_OLCHIKI_INDIA LanguageType(0x06B3)
 #define LANGUAGE_USER_FRENCH_GUINEA         LanguageType(0x940C)  /* makeLangID( 0x25, getPrimaryLanguage( LANGUAGE_FRENCH)) */
 #define LANGUAGE_USER_ABKHAZ                LanguageType(0x06B4)
+#define LANGUAGE_USER_ENGLISH_GUYANA        LanguageType(0xBC09)  /* makeLangID( 0x2F, getPrimaryLanguage( LANGUAGE_ENGLISH_UK)) */
+
 
 /* XXX Add new user defined LCIDs ^^^ there.
  * Note that we run out of IDs with sublanguage ID 0x01 after 0x07DF ... */