doc: add missing float32/float64 FFI type names - #64874
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`ToFFIType()` accepts `float32` and `float64` as aliases for `float` and `double`, and both names already appear in the `ffi.types` constants list further down the same page, but they were missing from the list of supported type names. Also split `char` onto its own line. Unlike `u8`, `uint8` and `bool`, which always map to `ffi_type_uint8`, `char` maps to either `ffi_type_sint8` or `ffi_type_uint8` depending on the platform C ABI, as the paragraph below the list already explains. Signed-off-by: Soul Lee <alus20x@gmail.com>
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ToFFIType()acceptsfloat32andfloat64as aliases forfloatanddouble, but the supported type names list never included them. They were added to the parser in #62892, which only touchedsrc/ffi/types.cc, so the same section lists both asffi.typesconstant values a few lines below a list that omits them.Also splits
charonto its own line.u8,uint8andboolalways map toffi_type_uint8, whereascharmaps toffi_type_sint8orffi_type_uint8depending on the platform, as the paragraph below the list already documents.#64848 proposes removing these aliases entirely; this only makes the list match what
ToFFIType()accepts today, and those lines can go away with the aliases if that lands.Refs: #62892
Refs: #64848