fix generics treating symchoice symbols as uninstantiated #23860
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narimiran
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Sep 13, 2024
fixes #23853 Since #22610 generics turns the `Name` in the `GT.Name` expression in the test code into a sym choice. The problem is when the compiler tries to instantiate `GT.Name` it also instantiates the sym choice symbols. `Name` has type `template (E: type ExtensionField)` which contains the unresolved generic type `ExtensionField`, which the compiler mistakes as an uninstantiated node, when it's just part of the type of the template. The compilation of the node itself and hence overloading will handle the instantiation of the proc, so we avoid instantiating it in `semtypinst`, similar to how the first nodes of call nodes aren't instantiated. (cherry picked from commit 97f5474)
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fixes #23853
Since #22610 generics turns the
Namein theGT.Nameexpression in the test code into a sym choice. The problem is when the compiler tries to instantiateGT.Nameit also instantiates the sym choice symbols.Namehas typetemplate (E: type ExtensionField)which contains the unresolved generic typeExtensionField, which the compiler mistakes as an uninstantiated node, when it's just part of the type of the template. The compilation of the node itself and hence overloading will handle the instantiation of the proc, so we avoid instantiating it insemtypinst, similar to how the first nodes of call nodes aren't instantiated.