all: use "reports whether" consistently instead of "returns whether"

Follow-up for CL 147037 and after Brad noticed the "returns whether"
pattern during the review of CL 150621.

Go documentation style for boolean funcs is to say:

    // Foo reports whether ...
    func Foo() bool

(rather than "returns whether")

Created with:

    $ perl -i -npe 's/returns whether/reports whether/' $(git grep -l "returns whether" | grep -v vendor)

Change-Id: I15fe9ff99180ad97750cd05a10eceafdb12dc0b4
Reviewed-on: https://go-review.googlesource.com/c/150918
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/cmd/compile/internal/mips64/ssa.go b/src/cmd/compile/internal/mips64/ssa.go
index bf2076f5fb..8a2d2b0f7a 100644
--- a/src/cmd/compile/internal/mips64/ssa.go
+++ b/src/cmd/compile/internal/mips64/ssa.go
@@ -14,12 +14,12 @@ import (
 	"cmd/internal/obj/mips"
 )
 
-// isFPreg returns whether r is an FP register
+// isFPreg reports whether r is an FP register
 func isFPreg(r int16) bool {
 	return mips.REG_F0 <= r && r <= mips.REG_F31
 }
 
-// isHILO returns whether r is HI or LO register
+// isHILO reports whether r is HI or LO register
 func isHILO(r int16) bool {
 	return r == mips.REG_HI || r == mips.REG_LO
 }