all: gofmt -w -r 'interface{} -> any' src

And then revert the bootstrap cmd directories and certain testdata.
And adjust tests as needed.

Not reverting the changes in std that are bootstrapped,
because some of those changes would appear in API docs,
and we want to use any consistently.
Instead, rewrite 'any' to 'interface{}' in cmd/dist for those directories
when preparing the bootstrap copy.

A few files changed as a result of running gofmt -w
not because of interface{} -> any but because they
hadn't been updated for the new //go:build lines.

Fixes #49884.

Change-Id: Ie8045cba995f65bd79c694ec77a1b3d1fe01bb09
Reviewed-on: https://go-review.googlesource.com/c/go/+/368254
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>

5 files changed, 16 insertions, 16 deletions

diff --git a/src/math/all_test.go b/src/math/all_test.go
index 55c805e199..c11d823233 100644
--- a/src/math/all_test.go
+++ b/src/math/all_test.go
@@ -3175,7 +3175,7 @@ func TestTrigReduce(t *testing.T) {
 // https://golang.org/issue/201
 
 type floatTest struct {
-	val  interface{}
+	val  any
 	name string
 	str  string
 }
diff --git a/src/math/big/floatconv_test.go b/src/math/big/floatconv_test.go
index 3aa6834143..a1cc38a459 100644
--- a/src/math/big/floatconv_test.go
+++ b/src/math/big/floatconv_test.go
@@ -576,7 +576,7 @@ func TestFloatText(t *testing.T) {
 func TestFloatFormat(t *testing.T) {
 	for _, test := range []struct {
 		format string
-		value  interface{} // float32, float64, or string (== 512bit *Float)
+		value  any // float32, float64, or string (== 512bit *Float)
 		want   string
 	}{
 		// from fmt/fmt_test.go
diff --git a/src/math/bits/make_examples.go b/src/math/bits/make_examples.go
index ac4004df41..92e9aabfb5 100644
--- a/src/math/bits/make_examples.go
+++ b/src/math/bits/make_examples.go
@@ -37,44 +37,44 @@ func main() {
 	for _, e := range []struct {
 		name string
 		in   int
-		out  [4]interface{}
-		out2 [4]interface{}
+		out  [4]any
+		out2 [4]any
 	}{
 		{
 			name: "LeadingZeros",
 			in:   1,
-			out:  [4]interface{}{bits.LeadingZeros8(1), bits.LeadingZeros16(1), bits.LeadingZeros32(1), bits.LeadingZeros64(1)},
+			out:  [4]any{bits.LeadingZeros8(1), bits.LeadingZeros16(1), bits.LeadingZeros32(1), bits.LeadingZeros64(1)},
 		},
 		{
 			name: "TrailingZeros",
 			in:   14,
-			out:  [4]interface{}{bits.TrailingZeros8(14), bits.TrailingZeros16(14), bits.TrailingZeros32(14), bits.TrailingZeros64(14)},
+			out:  [4]any{bits.TrailingZeros8(14), bits.TrailingZeros16(14), bits.TrailingZeros32(14), bits.TrailingZeros64(14)},
 		},
 		{
 			name: "OnesCount",
 			in:   14,
-			out:  [4]interface{}{bits.OnesCount8(14), bits.OnesCount16(14), bits.OnesCount32(14), bits.OnesCount64(14)},
+			out:  [4]any{bits.OnesCount8(14), bits.OnesCount16(14), bits.OnesCount32(14), bits.OnesCount64(14)},
 		},
 		{
 			name: "RotateLeft",
 			in:   15,
-			out:  [4]interface{}{bits.RotateLeft8(15, 2), bits.RotateLeft16(15, 2), bits.RotateLeft32(15, 2), bits.RotateLeft64(15, 2)},
-			out2: [4]interface{}{bits.RotateLeft8(15, -2), bits.RotateLeft16(15, -2), bits.RotateLeft32(15, -2), bits.RotateLeft64(15, -2)},
+			out:  [4]any{bits.RotateLeft8(15, 2), bits.RotateLeft16(15, 2), bits.RotateLeft32(15, 2), bits.RotateLeft64(15, 2)},
+			out2: [4]any{bits.RotateLeft8(15, -2), bits.RotateLeft16(15, -2), bits.RotateLeft32(15, -2), bits.RotateLeft64(15, -2)},
 		},
 		{
 			name: "Reverse",
 			in:   19,
-			out:  [4]interface{}{bits.Reverse8(19), bits.Reverse16(19), bits.Reverse32(19), bits.Reverse64(19)},
+			out:  [4]any{bits.Reverse8(19), bits.Reverse16(19), bits.Reverse32(19), bits.Reverse64(19)},
 		},
 		{
 			name: "ReverseBytes",
 			in:   15,
-			out:  [4]interface{}{nil, bits.ReverseBytes16(15), bits.ReverseBytes32(15), bits.ReverseBytes64(15)},
+			out:  [4]any{nil, bits.ReverseBytes16(15), bits.ReverseBytes32(15), bits.ReverseBytes64(15)},
 		},
 		{
 			name: "Len",
 			in:   8,
-			out:  [4]interface{}{bits.Len8(8), bits.Len16(8), bits.Len32(8), bits.Len64(8)},
+			out:  [4]any{bits.Len8(8), bits.Len16(8), bits.Len32(8), bits.Len64(8)},
 		},
 	} {
 		for i, size := range []int{8, 16, 32, 64} {
diff --git a/src/math/rand/example_test.go b/src/math/rand/example_test.go
index 4107613555..f691e39d64 100644
--- a/src/math/rand/example_test.go
+++ b/src/math/rand/example_test.go
@@ -57,7 +57,7 @@ func Example_rand() {
 	// The tabwriter here helps us generate aligned output.
 	w := tabwriter.NewWriter(os.Stdout, 1, 1, 1, ' ', 0)
 	defer w.Flush()
-	show := func(name string, v1, v2, v3 interface{}) {
+	show := func(name string, v1, v2, v3 any) {
 		fmt.Fprintf(w, "%s\t%v\t%v\t%v\n", name, v1, v2, v3)
 	}
 
diff --git a/src/math/rand/regress_test.go b/src/math/rand/regress_test.go
index 1f30be85d1..813098ec9c 100644
--- a/src/math/rand/regress_test.go
+++ b/src/math/rand/regress_test.go
@@ -46,7 +46,7 @@ func TestRegress(t *testing.T) {
 			var args []reflect.Value
 			var argstr string
 			if mt.NumIn() == 1 {
-				var x interface{}
+				var x any
 				switch mt.In(0).Kind() {
 				default:
 					t.Fatalf("unexpected argument type for r.%s", m.Name)
@@ -83,7 +83,7 @@ func TestRegress(t *testing.T) {
 				args = append(args, reflect.ValueOf(x))
 			}
 
-			var out interface{}
+			var out any
 			out = mv.Call(args)[0].Interface()
 			if m.Name == "Int" || m.Name == "Intn" {
 				out = int64(out.(int))
@@ -120,7 +120,7 @@ func TestRegress(t *testing.T) {
 	}
 }
 
-var regressGolden = []interface{}{
+var regressGolden = []any{
 	float64(4.668112973579268),          // ExpFloat64()
 	float64(0.1601593871172866),         // ExpFloat64()
 	float64(3.0465834105636),            // ExpFloat64()