[bxc#18361] mdbrebase: use File.Move instead of FileInfo.MoveTo
[runtime] Update configure after changes to llvm-config in the newest llvm versions.
[jit] Add a MONO_IS_CROSS_COMPILE define.
[sgen] Fix the merging code.

The right behavior is that the loop move values up to the original size
and them the store after the loop store past it.

Let's see the last 2 iterations:

//i == size - 1 (value = array[size - 2], tmp = array [size - 1])
dyn_array_int_set (array, size, value); //ok
value = tmp; //ok
tmp = dyn_array_int_get (array, i + 1); //tmp has an unknown value, as the last element was never stored to.

//i == size (value = array[size - 1], tmp = array [size])
dyn_array_int_set (array, size, value); //This sets the last element to the right value
value = tmp; //value is undefined, as tmp has
tmp = dyn_array_int_get (array, i + 1); //this is an out-of-bounds read as we're reading 2 elements past the end.

The after the loop store (tmp = array [size + 1]):
dyn_array_int_set (array, size + 1, tmp); //This sets the last element to an unknown value.

With the fix on the last iteration is - 1. The post store will use value, which has
the right value (array [size - 1]).
Fix a race condition in the test suite.
Correct spelling DEFAULT_ACCESS_MODIFER -> DEFAULT_ACCESS_MODIFIER
[thread] Only register a dead letter if the current NSThread is non-null.

This breaks all embedder that don't link with CoreFoundation. In mono's case, monodis.
[boehm] Fix memory management for toggleref.

Replace GC_free with GC_INTERNAL_FREE. The former might take the GC lock
and deadlock us.

Replace GC_INTERNAL_MALLOC with GC_INTERNAL_MALLOC_IGNORE_OFF_PAGE as
we don't need the rest of the GC messing around with the toggleref array.
WebResponse.cs: Implement SupportsHeaders property
System/PCL: Implement HttpWebRequest.SupportsCookieContainer, WebRequest.CreateHttp;   Fixes #18378
Merge pull request #953 from rcook/p-rcook-correct-spelling

Correct spelling DEFAULT_ACCESS_MODIFER -> DEFAULT_ACCESS_MODIFIER
[corlib] Fix localized resource loading bug (#14987)

We shouldn't share non-existent resources between resource
managers since different resources can have different localizations.
Bump mono version.
[runtime] Fix make install when boehm is disabled.
[sgen] Restore hazard pointers in suspend signal handler.  Fixes #15695.
[Fix] Bugzilla #18182 - ConcurrentQueue<T>.TryPeek() is not thread safe
- in the previous version the IsEmpty could be false, but by time we get
  to head.Next.Value we get an exception since Value is now null
- passes existing test cases, although these are not definitive since
  they don't show threading issue
- would need to adapt System.Threading.Tasks.ParallelTestHelper to allow
  TryPeek() to be called during Enqueue/Dequeue operations to truly
  test this change out
[Fix] Bugzilla #18235 - System.Runtime.Caching.MemoryCache doesn't order expirable items correctly
- BubbleUp() in MemoryCacheEntryPriorityQueue was not ordering correctly on item insert
- Added a test case
[Fix] Bugzilla #18182 - ConcurrentQueue<T>.TryPeek() is not thread safe
- removed IsEmpty test from TryPeek() since not needed now
[runtime] Fix the msvc build.
Do not crash if path is specified

AssemblyBuilder is not a good class for doing that but simply taking only the file name covers most cases.
The best solution is to rewrite this tool using Mono.Cecil.

FYI AL.exe from .NET is not written in managed because of the SRE limitation