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a9156ff091
The semantic nodes cannot be fully immutable, as they contain cyclic references. Remove Resolver::CreateSemanticNodes(), and instead construct and mutate the semantic nodes in the single traversal pass. Give up on trying to maintain the 'authored' type names (aliased names). These are a nightmare to maintain, and provided limited use. Significantly simplfies the Resolver, and allows us to generate more semantic to semantic references, reducing sem -> ast -> sem hops. Note: This change introduces constant value propagation across constant variables. This is unlocked by the earlier construction of the sem::Variable. Change-Id: I592092fdc47fe24d30e512952511c9ab7c16d7a1 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/68406 Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Ben Clayton <bclayton@google.com> Reviewed-by: Antonio Maiorano <amaiorano@google.com>