The formula for calculating allowance was not only overly complicated
but completely broken, which resulted in the allowance always being the
minimum (4 times the nursery size).  That resulted in too frequent garbage
collections when the heap grew larger.

Now we do something very similar to what Boehm does: Allow the heap
to grow by a third before the next major collection happens.

Fix line endings.  Add test for JavaScriptSerializer.Deserialize(string input, Type targetType).

…ler signature definitions to mono-signal-handler.h and using them everywhere.

The internal allocator used size segregated blocks which were always
16k large.  Since we have quite a few different size classes this led
to a lot of allocation even for very small programs.

We now use block sizes that are determined by the slot size and are as
small as possible.  They're power-of-two multiples of the page size,
so we end up with blocks of 4k, 8k and 16k.

Removed erroneously added property to HttpRequestBase in pull #1353

… ACM is a standard

protocol for emulating serial ports over USB.

This commit licensed as MIT/X11.

The issue was with the new heuristic of the thread pool which would not create new threads, leading to deadlock between dependent tasks.
The fix is to check if every worker threads are sleeping, waiting or joining, and if that's the case, then we create a new thread because we might be in the case where the tasks being currently run depends on one still being enqueued in the cq or one of the wsq.

The following tests would previously fail :

1) MonoTests.System.Threading.Tasks.TaskTests.DoubleWaitTest :   PlayScriptRedux#1
  Expected: True
  But was:  False

at MonoTests.System.Threading.Tasks.TaskTests.<DoubleWaitTest>m__27 () [0x00077] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/Test/System.Threading.Tasks/TaskTest.cs:800
at MonoTests.System.Threading.Tasks.ParallelTestHelper.Repeat (System.Action action, Int32 numRun) [0x00007] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/Test/System.Threading.Tasks/ParallelTestHelper.cs:48
at MonoTests.System.Threading.Tasks.TaskTests.DoubleWaitTest () [0x00000] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/Test/System.Threading.Tasks/TaskTest.cs:790
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00054] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/System.Reflection/MonoMethod.cs:230

2) MonoTests.System.Threading.Tasks.TaskTests.HideSchedulerTest :   PlayScriptRedux#1
  Expected: True
  But was:  False

at MonoTests.System.Threading.Tasks.TaskTests.HideSchedulerTest () [0x0003d] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/Test/System.Threading.Tasks/TaskTest.cs:1914
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00054] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/System.Reflection/MonoMethod.cs:230

3) MonoTests.System.Threading.Tasks.TaskTests.WaitAll_TimeoutWithExceptionsAfter :   PlayScriptRedux#1
  Expected: True
  But was:  False

at MonoTests.System.Threading.Tasks.TaskTests.WaitAll_TimeoutWithExceptionsAfter () [0x00070] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/Test/System.Threading.Tasks/TaskTest.cs:317
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00054] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/System.Reflection/MonoMethod.cs:230

4) MonoTests.System.Threading.Tasks.TaskTests.WaitAll_TimeoutWithExceptionsBefore :   PlayScriptRedux#1
  Expected: True
  But was:  False

at MonoTests.System.Threading.Tasks.TaskTests.WaitAll_TimeoutWithExceptionsBefore () [0x00070] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/Test/System.Threading.Tasks/TaskTest.cs:341
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00054] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/System.Reflection/MonoMethod.cs:230

5) MonoTests.System.Threading.Tasks.TaskTests.WaitAnyTest :   PlayScriptRedux#3
  Expected: not -1
  But was:  -1

at MonoTests.System.Threading.Tasks.TaskTests.<WaitAnyTest>m__0 () [0x00026] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/Test/System.Threading.Tasks/TaskTest.cs:142
at MonoTests.System.Threading.Tasks.ParallelTestHelper.Repeat (System.Action action, Int32 numRun) [0x00007] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/Test/System.Threading.Tasks/ParallelTestHelper.cs:48
at MonoTests.System.Threading.Tasks.ParallelTestHelper.Repeat (System.Action action) [0x00000] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/Test/System.Threading.Tasks/ParallelTestHelper.cs:42
at MonoTests.System.Threading.Tasks.TaskTests.WaitAnyTest () [0x00000] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/Test/System.Threading.Tasks/TaskTest.cs:128
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00054] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/System.Reflection/MonoMethod.cs:230

6) MonoTests.System.Threading.Tasks.TaskTests.WaitChildTestCase :   #0b
  Expected: True
  But was:  False

at MonoTests.System.Threading.Tasks.TaskTests.<WaitChildTestCase>m__25 () [0x0006d] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/Test/System.Threading.Tasks/TaskTest.cs:705
at MonoTests.System.Threading.Tasks.ParallelTestHelper.Repeat (System.Action action, Int32 numRun) [0x00007] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/Test/System.Threading.Tasks/ParallelTestHelper.cs:48
at MonoTests.System.Threading.Tasks.TaskTests.WaitChildTestCase () [0x00000] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/Test/System.Threading.Tasks/TaskTest.cs:684
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00054] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/System.Reflection/MonoMethod.cs:230

7) MonoTests.System.Threading.Tasks.TaskTests.WaitingForChildrenToComplete :   PlayScriptRedux#3
  Expected: True
  But was:  False

at MonoTests.System.Threading.Tasks.TaskTests.WaitingForChildrenToComplete () [0x00048] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/Test/System.Threading.Tasks/TaskTest.cs:734
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00054] in /Users/ludovic/Xamarin/mono/mcs/class/corlib/System.Reflection/MonoMethod.cs:230

…eviously all calls were made to plt entries and the plt entry symbols were aliased to point to the corresponding method if the method was directly callable using the .set assembler directive. This doesn't seem to work with newer LLVM/CLANG versions, so do this completely on the LLVM side using Value::replaceAllUsesWith (). Fixes #23976.

Fix win32 build.

…ds when using explicit layout. Fixes #23954.

…or overlapping fields when the size of the type is known.

…W to create phi node instructions to avoid asserts in the spill pass. Fixes #24006.

…' into e61eaf

Merge commit 'fa2c2870e56fa25ee1142ebdba9910a07504eda8'

…' into e61eaf

Merge commit '92d86659ca5a71b91c631cb69fb5c6ceccd68c7c'

…' into e61eaf

Merge commit 'f600c130efd744e284a344496e9cc287294f52e1'

…' into e61eaf

Merge commit '8f9a74f2f6e07f395c8c697cfb64938357897cfe'

…' into e61eaf

Merge commit '424d1cdc8b8b5ebb9496b4ff078fed41f7142bd8'

…' into e61eaf

Merge commit '6a738caa5a156fb60275aeb9f5dc47bd2c9290c2'

…' into e61eaf

Merge commit '100ecb4f0f7e901b593eaa35057a3f8aa2cdcaf7'

…' into e61eaf

Merge commit '09308892bd86cb20fa19431fe05682b01185f3e3'

…' into e61eaf

Merge commit '7b4bd74b4db0f7516f9b7d1d6867d4105fde1ab6'

…' into 16f7db

Merge commit 'b160f1e3b7b62f374c7b07dcfe3a877790384d41'

…' into 16f7db

Merge commit '367d417207d81e519e57102efc48004daab7a54a'

…' into 16f7db

Merge commit 'de3ff228dc04cfa5cccd247bc09283688b3c50ba'

…to track