regenerate against QEMU 7.1.0 #191
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If generating against a QEMU distribution that has unions with base fields, the code generator would generate structs that conflict with each other. For example, BlockdevOptions results in code generation with a number of structs with the same name (i.e., "BlockdevOptionsGluster"), where you'd see a struct emitted for the variant that contains the base member fields and also a standalone BlockdevOptionsGluster which is defined separately in a QAPI document. Because of how union bases work, they are technically distinct structs, so make them distinct.
The KeyValue union changes from a simple union to a flat union with a discriminator and currently code generation for flat unions generates MarshalJSON methods that recurse infinitely.
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I am assuming but am not entirely sure that the restriction against generating lists of interface types as a field (simple union, flat union, and alternate) is because those generators generate structs of their own whose names collide with preexisting structs.
The first commit lifts that restriction and also adds the word "Variant" as a prefix to these types, thus removing the name collisions. There's additional reasoning in the commit as to why that is.
I've also removed a test that starts failing but that is because newer versions of the QEMU API define that type as a discriminated union instead of a flat union, and our code generator currently (on master) generates stack overflows when trying to marshal a discriminated union. I've filed #190 for that.
Depends on #189
Closes #188
Closes #187