feat: multi-value returns#3021
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JairusSW wants to merge 6 commits intoAssemblyScript:mainfrom
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This PR adds basic support for the Multi-Value Proposal. For a tuple type to be considered for
multi-value, it must be explicitly marked withreadonlyfirst.Related: #1633 #1425
So far, this adds basic compiler/binaryen support for outputting multi-value returns, but does not support things like indexing yet
I'm thinking that the next PR should add support type checking for tuples/multi-values, support indexing, and add an SROA pass to identify array literals vs tuples. After that, full support for tuples probably based off of warpo's implementation