Fix compilation with ICU 595.9.1

Upstream fix: https://bugs.webkit.org/show_bug.cgi?id=171612

Task-number: QTBUG-60532
Change-Id: I6014feea213aa70ebe40b09d9d1a03fd1ed3c843
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

4 files changed, 9 insertions, 5 deletions

diff --git a/Source/JavaScriptCore/API/JSStringRef.cpp b/Source/JavaScriptCore/API/JSStringRef.cpp
index 812f3d413..77a3fd0f4 100644
--- a/Source/JavaScriptCore/API/JSStringRef.cpp
+++ b/Source/JavaScriptCore/API/JSStringRef.cpp
@@ -37,7 +37,7 @@ using namespace WTF::Unicode;
 JSStringRef JSStringCreateWithCharacters(const JSChar* chars, size_t numChars)
 {
     initializeThreading();
-    return OpaqueJSString::create(chars, numChars).leakRef();
+    return OpaqueJSString::create(reinterpret_cast<const UChar*>(chars), numChars).leakRef();
 }
 
 JSStringRef JSStringCreateWithUTF8CString(const char* string)
@@ -62,7 +62,7 @@ JSStringRef JSStringCreateWithUTF8CString(const char* string)
 JSStringRef JSStringCreateWithCharactersNoCopy(const JSChar* chars, size_t numChars)
 {
     initializeThreading();
-    return OpaqueJSString::create(StringImpl::createWithoutCopying(chars, numChars, WTF::DoesNotHaveTerminatingNullCharacter)).leakRef();
+    return OpaqueJSString::create(StringImpl::createWithoutCopying(reinterpret_cast<const UChar*>(chars), numChars, WTF::DoesNotHaveTerminatingNullCharacter)).leakRef();
 }
 
 JSStringRef JSStringRetain(JSStringRef string)
@@ -83,7 +83,7 @@ size_t JSStringGetLength(JSStringRef string)
 
 const JSChar* JSStringGetCharactersPtr(JSStringRef string)
 {
-    return string->characters();
+    return reinterpret_cast<const JSChar*>(string->characters());
 }
 
 size_t JSStringGetMaximumUTF8CStringSize(JSStringRef string)
diff --git a/Source/JavaScriptCore/runtime/DateConversion.cpp b/Source/JavaScriptCore/runtime/DateConversion.cpp
index 0b57f012d..05e27338b 100644
--- a/Source/JavaScriptCore/runtime/DateConversion.cpp
+++ b/Source/JavaScriptCore/runtime/DateConversion.cpp
@@ -107,7 +107,8 @@ String formatDateTime(const GregorianDateTime& t, DateTimeFormat format, bool as
 #if OS(WINDOWS)
             TIME_ZONE_INFORMATION timeZoneInformation;
             GetTimeZoneInformation(&timeZoneInformation);
-            const WCHAR* timeZoneName = t.isDST() ? timeZoneInformation.DaylightName : timeZoneInformation.StandardName;
+            const WCHAR* winTimeZoneName = t.isDST() ? timeZoneInformation.DaylightName : timeZoneInformation.StandardName;
+            String timeZoneName(reinterpret_cast<const UChar*>(winTimeZoneName));
 #else
             struct tm gtm = t;
             char timeZoneName[70];
diff --git a/Source/WTF/wtf/TypeTraits.h b/Source/WTF/wtf/TypeTraits.h
index 9df2c95cf..f5d6121fd 100644
--- a/Source/WTF/wtf/TypeTraits.h
+++ b/Source/WTF/wtf/TypeTraits.h
@@ -72,6 +72,9 @@ namespace WTF {
     template<> struct IsInteger<unsigned long>      { static const bool value = true; };
     template<> struct IsInteger<long long>          { static const bool value = true; };
     template<> struct IsInteger<unsigned long long> { static const bool value = true; };
+#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__) || (defined(_HAS_CHAR16_T_LANGUAGE_SUPPORT) && _HAS_CHAR16_T_LANGUAGE_SUPPORT)
+    template<> struct IsInteger<char16_t>           { static const bool value = true; };
+#endif
 #if !COMPILER(MSVC) || defined(_NATIVE_WCHAR_T_DEFINED)
     template<> struct IsInteger<wchar_t>            { static const bool value = true; };
 #endif
diff --git a/Source/WebKit2/Shared/API/c/WKString.cpp b/Source/WebKit2/Shared/API/c/WKString.cpp
index cbac67dd8..23400a64e 100644
--- a/Source/WebKit2/Shared/API/c/WKString.cpp
+++ b/Source/WebKit2/Shared/API/c/WKString.cpp
@@ -55,7 +55,7 @@ size_t WKStringGetLength(WKStringRef stringRef)
 size_t WKStringGetCharacters(WKStringRef stringRef, WKChar* buffer, size_t bufferLength)
 {
     COMPILE_ASSERT(sizeof(WKChar) == sizeof(UChar), WKStringGetCharacters_sizeof_WKChar_matches_UChar);
-    return (toImpl(stringRef)->getCharacters(static_cast<UChar*>(buffer), bufferLength));
+    return (toImpl(stringRef)->getCharacters(reinterpret_cast<UChar*>(buffer), bufferLength));
 }
 
 size_t WKStringGetMaximumUTF8CStringSize(WKStringRef stringRef)