Refs #11209

They don't run yet as they are dependent on some algorithms being
available.
Refs #11209

size_t is converted to uint64_t on saving to nexus.

and use it in CheckWorkspacesMatch. This avoids changes in ordering
within the map affecting whether the map is actually the same as another.
Refs #7743

enabled its test and fixed (I believe unnoticed earlier) errors with file-backed operations.

Thanks to Owen for pointing out the CompareMDWorkspaces algorithm. Makes the
code for checking much cleaner.

I've added checks for MDEventWorkspaces. There is one check that is currently
commented out since I need to find out how some autogenerated code was created
before being able to use this new function.

Fix CheckWorkspacesMatch when used with WorkspaceGroup objects. It now has its own processGroups so that it can set an appropriate result string for different types of failure. Fixes #3886

Add pointer to physical instrument as a member (not used in vast majority of cases) of Instrument. Show this 'physical instrument' in the instrument view, if it exists. Re #1944.
P.S. This again lead to a const change which accounts for most of the changes.

Have a default 1:1, starting at 1, correspondence created by the spectra axis. Update the default 1:1 that is created with the MatrixWorkspace::init method so that it also starts at 1. This removes the need for most tests that care about it to bother creating their own spectra map and axis. Refs #3067

Replace uses of the SpectraDetectorMap with the new interface. Note that mutableSpectraMap has now gone in favour of using MatrixWorkspace::replaceSpectraMap with a brand new implentation. Re #3067

Fixes #2091: equals() function for quickly comparing workspaces. == operator cannot be overloaded since it compares the shared pointers rather than the actual contents.

Tell scons to build the new TestHelpers package so that ISIS buildservers are still happy with moving the test helpers while the CMake transition is still in progress. Refs #2196 and #1881

Rename Framework code directory to just that. Also delete Main and VS & Eclipse project file. Re #1881.