result type of toeplitz(x, r) when r is unused (of length 0 or 1) #9610

Job	Run time
MacOS (macOS-15-intel)	45m 51s
Windows (check, intel)	52m 15s
MacOS (macOS-15)	34m 4s
Windows (installer, arm)	24m 56s
Linux (clang, debian:testing, intel)	33m 59s
Windows (check, arm)	51m 55s
Linux (gcc, debian:testing, intel)	33m 18s
Linux (gcc, debian:stable, intel)	34m 24s
Linux (gcc, debian:testing, arm)	34m 56s
Linux (gcc, debian:stable, arm)	32m 53s
Linux (clang, debian:stable, arm)	33m 10s
Windows (installer, intel)	22m 13s
Linux (clang, debian:testing, arm)	33m 22s
Linux (clang, debian:stable, intel)	34m 54s
	8h 22m 10s

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