[FFI][Runtime] Use TVMValue::v_int64 to represent boolean values #17240
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This is a follow-up to #16183, which added handling of boolean values in the TVM FFI. The initial implementation added both a new type code (
kTVMArgBool) and a newTVMValue::v_boolvariant. This commit removes theTVMValue::v_boolvariant, since thekTVMArgBooltype code is sufficient to handle boolean arguments.Removing the
TVMValue::v_boolvariant also makes allTVMValuevariants be 64-bit (assuming a 64-bit CPU). This can simplify debugging in some cases, since it prevents partial values from inactive variants from being present in memory.