[Parse] Parse generic argument list after '->' #37596
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In order to support generalized opaque return types like `func foo() -> <T> T where T.U == Int`, we need this syntax extension. See https://forums.swift.org/t/improving-the-ui-of-generics/22814.
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This adds placeholder syntax which, after some discussion, is not something which we can merge as is into |
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In order to support generalized opaque return types like
func foo() -> <T> T where T.U == Int, we need this syntax extension. See https://forums.swift.org/t/improving-the-ui-of-generics/22814.