x86/x86asm: fix function name in comment

Change-Id: Ie70c842161c96948098082d3c0ff1b026bcfd8de
Reviewed-on: https://go-review.googlesource.com/c/arch/+/579198
Reviewed-by: qiu laidongfeng2 <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Ian Lance Taylor <[email protected]>
TryBot-Result: Gopher Robot <[email protected]>
Reviewed-by: Cherry Mui <[email protected]>
Auto-Submit: Ian Lance Taylor <[email protected]>
Commit-Queue: Ian Lance Taylor <[email protected]>
Run-TryBot: shuang cui <[email protected]>

x86/x86asm/ext_test.go

@@ -653,7 +653,7 @@ func enum8bit(try func([]byte)) {
 	}
 }
 
-// enum8bit generates all possible 2-byte sequences, followed by distinctive padding.
+// enum16bit generates all possible 2-byte sequences, followed by distinctive padding.
 func enum16bit(try func([]byte)) {
 	for i := 0; i < 1<<16; i++ {
 		try([]byte{byte(i), byte(i >> 8), 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88})