all: run gofmt on all source code

Some source code wasn't part of `FMT_PATHS` so wasn't checked for
correct formatting. This change includes all this source code and
excludes cgo/testdata because it contains files that can't be parsed.

src/internal/fuzz/fuzz.go

@@ -115,7 +115,7 @@ func CheckCorpus(vals []any, types []reflect.Type) error {
 	return errors.New("not implemented")
 }
 
-func ResetCoverage() {}
+func ResetCoverage()    {}
 func SnapshotCoverage() {}
 
 // RunFuzzWorker is called in a worker process to communicate with the

src/internal/task/task_none.go

@@ -1,3 +1,4 @@
+//go:build scheduler.none
 // +build scheduler.none
 
 package task

src/internal/task/task_stack_386.go

@@ -1,3 +1,4 @@
+//go:build scheduler.tasks && 386
 // +build scheduler.tasks,386
 
 package task

src/internal/task/task_stack_amd64.go

@@ -1,3 +1,4 @@
+//go:build scheduler.tasks && amd64 && !windows
 // +build scheduler.tasks,amd64,!windows
 
 package task

src/internal/task/task_stack_amd64_windows.go

@@ -1,3 +1,4 @@
+//go:build scheduler.tasks && amd64 && windows
 // +build scheduler.tasks,amd64,windows
 
 package task

src/internal/task/task_stack_arm.go

@@ -1,3 +1,4 @@
+//go:build scheduler.tasks && arm && !cortexm && !avr && !xtensa && !tinygo.riscv
 // +build scheduler.tasks,arm,!cortexm,!avr,!xtensa,!tinygo.riscv
 
 package task

src/internal/task/task_stack_arm64.go

@@ -1,3 +1,4 @@
+//go:build scheduler.tasks && arm64
 // +build scheduler.tasks,arm64
 
 package task

src/internal/task/task_stack_avr.go

@@ -1,3 +1,4 @@
+//go:build scheduler.tasks && avr
 // +build scheduler.tasks,avr
 
 package task

src/internal/task/task_stack_cortexm.go

@@ -1,3 +1,4 @@
+//go:build scheduler.tasks && cortexm
 // +build scheduler.tasks,cortexm
 
 package task

src/internal/task/task_stack_esp32.go

@@ -1,3 +1,4 @@
+//go:build scheduler.tasks && esp32
 // +build scheduler.tasks,esp32
 
 package task

src/internal/task/task_stack_esp8266.go

@@ -1,3 +1,4 @@
+//go:build scheduler.tasks && esp8266
 // +build scheduler.tasks,esp8266
 
 package task

src/internal/task/task_stack_tinygoriscv.go

@@ -1,3 +1,4 @@
+//go:build scheduler.tasks && tinygo.riscv
 // +build scheduler.tasks,tinygo.riscv
 
 package task