qt5: upgrade to 5.11 Alpha

* use qtwebkit and qtwebkit-examples from dev branch, because there is
  no 5.11 branch (there isn't 5.10 as well, but because nobranch=1 in
  qt5-git.inc nobody noticed).
* qtbase: drop qml-debug options
  removed from qtbase in:
  commit 525f8516c2580018f910cfb99ab5e0e36bd55ab1
  Author: Ulf Hermann <ulf.hermann@qt.io>
  Date:   Fri Oct 6 16:27:09 2017 +0200
  Subject: Remove qml-debug configure flag and feature
* qtgraphicaleffects, qtquickcontrols2, qtquickcontrols,
  qtvirtualkeyboard: add qtdeclarative-native dependency
  needed for qmlcachegen binary
* qtwebkit: update LIC_FILES_CHKSUM and remove PACKAGECONFIGs
  referenced files disappered in:
  commit 6882a04fb36642862b11efe514251d32070c3d65
  Author: Konstantin Tokarev <annulen@yandex.ru>
  Date:   Thu Aug 25 19:20:41 2016 +0300
  Subject: Imported QtWebKit TP3 (git b57bc6801f1876c3220d5a4bfea33d620d477443)

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

1 files changed, 47 insertions, 0 deletions

diff --git a/recipes-qt/qt5/qtwebengine/0012-chromium-musl-Adjust-default-pthread-stack-size.patch b/recipes-qt/qt5/qtwebengine/0012-chromium-musl-Adjust-default-pthread-stack-size.patch
new file mode 100644
index 00000000..cacd623e
--- /dev/null
+++ b/recipes-qt/qt5/qtwebengine/0012-chromium-musl-Adjust-default-pthread-stack-size.patch
@@ -0,0 +1,47 @@
+From 6c3233f1eec1a80bc771848af062cc92445b143b Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 7 Jul 2017 16:41:23 -0700
+Subject: [PATCH] chromium: musl: Adjust default pthread stack size
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ chromium/base/threading/platform_thread_linux.cc              | 3 ++-
+ chromium/third_party/WebKit/Source/platform/wtf/StackUtil.cpp | 4 ++--
+ 2 files changed, 4 insertions(+), 3 deletions(-)
+
+diff --git a/chromium/base/threading/platform_thread_linux.cc b/chromium/base/threading/platform_thread_linux.cc
+index 9917a7b..cb40665 100644
+--- a/chromium/base/threading/platform_thread_linux.cc
++++ b/chromium/base/threading/platform_thread_linux.cc
+@@ -173,7 +173,8 @@ void TerminateOnThread() {}
+ 
+ size_t GetDefaultThreadStackSize(const pthread_attr_t& attributes) {
+ #if !defined(THREAD_SANITIZER)
+-  return 0;
++  // use 8mb like glibc to avoid running out of space
++  return (1 << 23);
+ #else
+   // ThreadSanitizer bloats the stack heavily. Evidence has been that the
+   // default stack size isn't enough for some browser tests.
+diff --git a/chromium/third_party/WebKit/Source/platform/wtf/StackUtil.cpp b/chromium/third_party/WebKit/Source/platform/wtf/StackUtil.cpp
+index 13c3f90..07308e0 100644
+--- a/chromium/third_party/WebKit/Source/platform/wtf/StackUtil.cpp
++++ b/chromium/third_party/WebKit/Source/platform/wtf/StackUtil.cpp
+@@ -28,7 +28,7 @@ size_t GetUnderestimatedStackSize() {
+ // FIXME: On Mac OSX and Linux, this method cannot estimate stack size
+ // correctly for the main thread.
+ 
+-#if defined(__GLIBC__) || defined(OS_ANDROID) || defined(OS_FREEBSD) || \
++#if defined(OS_LINUX) || defined(OS_ANDROID) || defined(OS_FREEBSD) || \
+     defined(OS_FUCHSIA)
+   // pthread_getattr_np() can fail if the thread is not invoked by
+   // pthread_create() (e.g., the main thread of webkit_unit_tests).
+@@ -96,7 +96,7 @@ size_t GetUnderestimatedStackSize() {
+ }
+ 
+ void* GetStackStart() {
+-#if defined(__GLIBC__) || defined(OS_ANDROID) || defined(OS_FREEBSD) || \
++#if defined(OS_LINUX) || defined(OS_ANDROID) || defined(OS_FREEBSD) || \
+     defined(OS_FUCHSIA)
+   pthread_attr_t attr;
+   int error;