www/qt5-webengine: fix build with clang 14

Fixes compile error:

In file included from gen/third_party/blink/renderer/platform/platform_jumbo_63.cc:8:
./../../../../qtwebengine-everywhere-src-5.15.2/src/3rdparty/chromium/third_party/blink/renderer/platform/text/text_break_iterator_icu.cc:122:15: error: anonymous non-C-compatible type given name for linkage purposes by typedef declaration after its linkage was computed; add a tag name here to establish linkage prior to definition
typedef struct {
              ^
               UTextWithBuffer
./../../../../qtwebengine-everywhere-src-5.15.2/src/3rdparty/chromium/third_party/blink/renderer/platform/text/text_break_iterator_icu.cc:123:3: note: type is not C-compatible due to this member declaration
  DISALLOW_NEW();
  ^~~~~~~~~~~~~~
../../../../qtwebengine-everywhere-src-5.15.2/src/3rdparty/chromium/third_party/blink/renderer/platform/wtf/allocator/allocator.h:40:2: note: expanded from macro 'DISALLOW_NEW'
 public:                                                                      \
 ^~~~~~~
./../../../../qtwebengine-everywhere-src-5.15.2/src/3rdparty/chromium/third_party/blink/renderer/platform/text/text_break_iterator_icu.cc:126:3: note: type is given name 'UTextWithBuffer' for linkage purposes by this typedef declaration
} UTextWithBuffer;
  ^

PR:		261949
Approved by:	adridg (maintainer)
MFH:		2022Q1

www/qt5-webengine/files/patch-src_3rdparty_chromium_third__party_blink_renderer_platform_text_text__break__iterator__icu.cc

@@ -0,0 +1,16 @@
+--- src/3rdparty/chromium/third_party/blink/renderer/platform/text/text_break_iterator_icu.cc.orig	2020-11-07 01:22:36 UTC
++++ src/3rdparty/chromium/third_party/blink/renderer/platform/text/text_break_iterator_icu.cc
+@@ -119,11 +119,11 @@ enum TextContext { kNoContext, kPriorContext, kPrimary
+
+ const int kTextBufferCapacity = 16;
+
+-typedef struct {
++struct UTextWithBuffer {
+   DISALLOW_NEW();
+   UText text;
+   UChar buffer[kTextBufferCapacity];
+-} UTextWithBuffer;
++};
+
+ static inline int64_t TextPinIndex(int64_t& index, int64_t limit) {
+   if (index < 0)