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Jon Ross-Perkins
1b55ad86dd
Building on #3311, change SemIR to use the SharedValueStore. Since this removes hermeticity, raw output no longer prints ints, reals, and strings. TokenizedBuffer accessors are modified to return IDs because values are often passed through in semantics without needing to read them. I would've put SharedValueStores on Context, except for the GetArrayBoundValue convenience method. I felt awkward removing that, so it's on File, at least for now. That's then used by the formatter and Lower too. The flipside of this is that TokenizedBuffer has a SharedValueStores only for printing, so maybe that's similar enough to what File is doing. This doesn't start shifting other SemIR members to ValueStore, but that seems like a next step.