3db668e0bb
After the introduction of `OpAsmAttrInterface`, it is favorable to migrate code using `OpAsmDialectInterface` for ASM alias generation, which lives in `Dialect.cpp`, to use `OpAsmAttrInterface`, which lives in `Attrs.td`. In this way, attribute behavior is placed near its tablegen definition and people won't need to go through other files to know what other (unexpected) hooks comes into play.