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7d145a0fde
The handling of the `PpMode` variants is currently spread across three functions: `print_after_parsing`, `print_after_hir_lowering`, and `print_with_analysis`. Each one handles some of the variants. This split is primarily because `print_after_parsing` has slightly different arguments to the other two. This commit changes the structure. It merges the three functions into a single `print` function, and encapsulates the different arguments in a new enum `PrintExtra`. Benefits: - The code is a little shorter. - All the `PpMode` variants are handled in a single `match`, with no need for `unreachable!` arms. - It enables the trait removal in the subsequent commit by reducing the number of `call_with_pp_support_ast` call sites from two to one.