webkitgtk: fix build against icu-59 (PLD Linux patch)

srcpkgs/webkitgtk/patches/icu59.patch

@@ -0,0 +1,38 @@
+--- Source/JavaScriptCore/API/JSStringRef.h.orig	2017-02-20 17:20:08.000000000 +0100
++++ Source/JavaScriptCore/API/JSStringRef.h	2017-04-22 14:35:00.926530142 +0200
+@@ -32,6 +32,7 @@
+ #include <stdbool.h>
+ #endif
+ #include <stddef.h> /* for size_t */
++#include <uchar.h>
+ 
+ #ifdef __cplusplus
+ extern "C" {
+@@ -46,7 +47,7 @@
+  character. As with all scalar types, endianness depends on the underlying
+  architecture.
+ */
+-    typedef unsigned short JSChar;
++    typedef char16_t JSChar;
+ #else
+     typedef wchar_t JSChar;
+ #endif
+--- Source/WebKit2/Shared/API/c/WKString.h.orig	2017-02-20 17:20:17.000000000 +0100
++++ Source/WebKit2/Shared/API/c/WKString.h	2017-04-22 14:35:56.853196170 +0200
+@@ -28,6 +28,7 @@
+ 
+ #include <WebKit/WKBase.h>
+ #include <stddef.h>
++#include <uchar.h>
+ 
+ #ifndef __cplusplus
+ #include <stdbool.h>
+@@ -39,7 +40,7 @@
+ 
+ #if !defined(WIN32) && !defined(_WIN32) \
+     && !((defined(__CC_ARM) || defined(__ARMCC__)) && !defined(__linux__)) /* RVCT */
+-    typedef unsigned short WKChar;
++    typedef char16_t WKChar;
+ #else
+     typedef wchar_t WKChar;
+ #endif