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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/function/declaration/no_prelude/extern.carbon
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@@ -200,6 +200,7 @@ extern library "basic" fn F();
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
// CHECK:STDOUT: %self: %C = bind_name self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete = constants.%empty_struct_type]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
toolchain/check/testdata/function/declaration/no_prelude/fail_import_incomplete_return.carbon
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+1
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@@ -154,6 +154,7 @@ fn CallFAndGIncomplete() {
// CHECK:STDOUT: class @C;
// CHECK:STDOUT:
// CHECK:STDOUT: class @D {
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete = constants.%empty_struct_type]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT: