Assign and temporary variable nodes can now be pasted into any graph with a supporting schema. Drag and drop from palette and context menu will not allow these nodes still.
When dragging and dropping nodes from the palette, if the node cannot be pasted or it is not compatible with the graph, it will not be droppable.
#jira UE-6234 - Expand Node crashes engine
[CL 2383820 by Michael Schoell in Main branch]
* Variadic version is compiler-switched on variadic template support.
* Variadic version doesn't repeatedly include lots of the same headers to generate code.
* Tidying up of some original delegate stuff.
* Removed return type from lambda in K2Node_TemporaryVariable which was causing a Clang ICE.
* TTuple, TIntegerSequence and associated functionality - generic, but currently only implementation details of delegates and not yet for use in general code because there is no non-variadic version of them.
* MessageRouter and MessageTracer updated to use an actual delegate instead of implementation-specific identifiers.
* TTypeWrapper and TUnwrapType added to aid 'recursive' template definitions.
* C4373 disabled on VC - was only hitting this warning during development, but it's good to disable it anyway, as it's a 'this code is now standard' warning.
#codereview robert.manuszewski,mike.fricker,max.preussner,gareth.martin
[CL 2312735 by Steve Robb in Main branch]
#add Added UEdGraphNode::GetNodeNativeTitle to return a native title for a node.
#add Added UEdGraphNode::GetNodeSearchTitle to return the native and localized title for a node, together, for searching.
#add Can hold "alt" over a node (in the graph panel, or the palette) to see the native name of the node.
#ttp 331252 - Blueprints: Editor: L10N: Blueprints need to consistently show localized node names and when searching need to search both the localized name and the native name
#codereview justin.sargent
[CL 2044506 by Michael Schoell in Main branch]
