Return the integer value if the instance is a int32.

else aborts

Property definitions

nitc $ Instance :: to_i32
	# Return the integer value if the instance is a int32.
	# else aborts
	fun to_i32: Int32 do abort
src/interpreter/naive_interpreter.nit:757,2--759,27

nitc $ PrimitiveInstance :: to_i32
	redef fun to_i32 do return val.as(Int32)
src/interpreter/naive_interpreter.nit:840,2--41