Bump DPPL version to 0.27

[torfjelde]

This includes a few breaking changes + some fixes.

Of greatest importance is:

• prob"..." macro is gone.
• Definitions of the form @model demo(::Type{T}=...) are now converted into demo(::TypeWrap{T}=...) to improve type-stability and thus performance. But this means that one can no longer call demo(Vector{Float64}) but instead need to do demo(TypeWrap{Vector{Float64}}()).

Close #2220

[yebai]

Should demo(TypeWrap{Float64}())be demo(TypeWrap{Vector{Float64}}())?

[torfjelde]

Yep! Edited.

[torfjelde]

But we need to merge TuringLang/DynamicPPL.jl#609 first

[yebai]

Is the old syntax no longer supported, or just inefficient due to type instability?

[torfjelde]

Is the old syntax no longer supported, or just inefficient due to type instability?

Old syntax is still supported for definition, but not for calling.

[yebai]

See TuringLang/DynamicPPL.jl#610

[coveralls]

Pull Request Test Coverage Report for Build 9130206833

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 0.0%

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Totals
Change from base Build 9125944285:	0.0%
Covered Lines:	0
Relevant Lines:	1528

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💛 - Coveralls

[torfjelde]

Anyone wants to give this the go-ahead?

[torfjelde]

Waiting with the merge until I've gotten the other two PRs through, as they are not breaking (but need to fix tests)