all: fix comment typos

Change-Id: Ic16824482142d4de4d0b949459e36505ee944ff7
Reviewed-on: https://go-review.googlesource.com/c/go/+/448175
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Dan Kortschak <dan@kortschak.io>
Auto-Submit: Robert Griesemer <gri@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Dan Kortschak <dan@kortschak.io>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>

tables.go

@@ -38,7 +38,7 @@ func (v *projLookupTable) FromP3(q *Point) {
 	tmpP3 := Point{}
 	tmpP1xP1 := projP1xP1{}
 	for i := 0; i < 7; i++ {
-		// Compute (i+1)*Q as Q + i*Q and convert to a ProjCached
+		// Compute (i+1)*Q as Q + i*Q and convert to a projCached
 		// This is needlessly complicated because the API has explicit
 		// receivers instead of creating stack objects and relying on RVO
 		v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.Add(q, &v.points[i])))
@@ -53,7 +53,7 @@ func (v *affineLookupTable) FromP3(q *Point) {
 	tmpP3 := Point{}
 	tmpP1xP1 := projP1xP1{}
 	for i := 0; i < 7; i++ {
-		// Compute (i+1)*Q as Q + i*Q and convert to AffineCached
+		// Compute (i+1)*Q as Q + i*Q and convert to affineCached
 		v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.AddAffine(q, &v.points[i])))
 	}
 }