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Remove all remaining uses of TypeIds as instruction operands. (#5280)

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In preparation for shifting from `TypeId`s potentially representing
attached types to always representing unattached types, using
[terminology suggested on
Discord](https://discord.com/channels/655572317891461132/963846118964350976/1359286326779973712).
This change causes us to track slightly more type spelling information
through SemIR.

One change that has significant impact on the SemIR output is that we
now build a `struct_type` instruction in each class representing the
types of the fields, including the spelling used for those types. This
is now no longer always identical to the corresponding canonical
`struct_type` for the object representation, so it's built separately
and owned by the class.

Also remove `TypeBlock` support entirely, as its only use was
representing `TupleType`s, which now use an `InstBlock`.
This commit is contained in:
Richard Smith
2025-04-10 20:53:42 +00:00
committed by GitHub
parent 1445ec9e4f
commit a74ca9071b
350 changed files with 1880 additions and 1189 deletions
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toolchain/check/testdata/pointer/arrow.carbon
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@@ -80,6 +80,7 @@ fn Foo(ptr: C*) {
// CHECK:STDOUT: %.loc13_3: %C.elem = var_pattern %.loc13_12
// CHECK:STDOUT: }
// CHECK:STDOUT: %.var: ref %C.elem = var <none>
// CHECK:STDOUT: %struct_type.field: type = struct_type {.field: %ptr.019} [concrete = constants.%struct_type.field]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %struct_type.field [concrete = constants.%complete_type]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT: