This alters the DFA control flow graph generation for case statments.
Gotos are now generated as a chained link, this ensures that evaluation
of variant branches collapses as early as possible, without hitting the
2k call limit.
* Analyse last reads all at once
* Integrate firstWrite analysis
* Small cleanup
* Use sets instead of seqs
* Remove instrTargets
* Reap the benefits
* Implement error diagnostics
* Operate on DFA index for lastRead analysis
* Use mgetOrPut
* Cache alias results
This improves performance by a lot, since many
CFG locations map to a single PNode
* Improve performance
* Improve performance
* Cleanup
* Fix#17025
* Grammar
* Expand testcase
* Analyse last reads all at once
* Integrate firstWrite analysis
* Small cleanup
* Use sets instead of seqs
* Remove instrTargets
* Reap the benefits
* Implement error diagnostics
* Operate on DFA index for lastRead analysis
* Use mgetOrPut
* Cache alias results
This improves performance by a lot, since many
CFG locations map to a single PNode
* Improve performance
* Improve performance
* Cleanup
* Analyse last reads all at once
* Integrate firstWrite analysis
* Small cleanup
* Use sets instead of seqs
* Remove instrTargets
* Reap the benefits
* Implement error diagnostics
* Operate on DFA index for lastRead analysis
* Use mgetOrPut
* I don't care about observable stores
* enforce explicit initializations
* cleaner code for the stdlib
* stdlib: use explicit initializations
* make tests green
* algorithm.nim: set result explicitly
* remove out parameters and bring the PR into a mergable state
* updated the changelog
* ensure capitalize doesn't take an inferred sink parameter
* sink parameter inference: first version, for now disabled. Changed that sink parameters can be consumed multiple times in order to adhere to our spec.
* sink inference can now be disabled with .nosinks; sometimes for proc type interop this is required
* fixes yet another critical DFA bug
* better implementation that also understands if expressions etc
* document sink parameter inference and allow for global disabling
* fixes#13102
* closes#13149
* ARC: fixes a move optimizer bug (there are more left regarding array and tuple indexing)
* proper fix; fixes#12957
* fixes yet another case object '=' code generation problem
* mark user defined destructors with sfOverriden to simplify the logic
* refactoring in preparation to merge liftings and generic instantiations for destructors
* ast: introduce nkHiddenTryStmt for destructor generation in order to be able to optimize better the code later on
* renamed 'patterns' switch to 'trmacros' as it was totally misleading before
* destructors: introduce tfCheckedForDestructor flag in preparation of strict =destroy checking
* test for invalid/too late destructor introductions
* liftdestructors: make code robust for nimsuggest
* --newruntime works for hello world again
* newruntime: code generation for closures
