tests: fix keep tests with spawn

CHANGELOG.md

@@ -1,6 +1,9 @@
 ## V 0.3.3
- -*Not yet released*
- - vfmt now supports `// vfmt off` and `// vfmt on` for turning off the formatting locally for *short* snippets of code. Useful for keeping your carefully arranged matrices in tact.
+*Not yet released*
+- `go foo()` has been replaced with `spawn foo()` (launches an OS thread, `go` will be used for
+  upcoming coroutines instead).
+- vfmt now supports `// vfmt off` and `// vfmt on` for turning off the formatting locally for *short* snippets of code. Useful for keeping your carefully arranged matrices in tact.
+
 ## V 0.3.2
 *31 Oct 2022*
 - New simplified string interpolation: `println("Hello, {name}!")`. It will be the only way, old syntax (`${name}` and `$name`)

vlib/v/fmt/tests/chan_ops_keep.vv

@@ -39,7 +39,7 @@ fn do_rec_calc_send(chs []chan i64, sem sync.Semaphore) {
 fn test_channel_array_mut() {
 	mut chs := [chan i64{}, chan i64{cap: 10}]
 	sem := sync.new_semaphore()
-	go do_rec_calc_send(chs, sem)
+	spawn do_rec_calc_send(chs, sem)
 	mut t := i64(100)
 	for _ in 0 .. num_iterations {
 		chs[0] <- t
@@ -57,7 +57,7 @@ fn test_channel_array_mut() {
 	sem.wait()
 	assert t == 100 + num_iterations
 	ch2 := chan mut St{cap: 10}
-	go g(ch2)
+	spawn g(ch2)
 }
 
 fn g(ch chan mut St) {

vlib/v/fmt/tests/chan_or_keep.vv

@@ -24,7 +24,7 @@ fn do_send_2(ch chan int, val int) ?int {
 
 fn main() {
 	ch := chan int{}
-	go f(ch)
+	spawn f(ch)
 	mut s := 1
 	for {
 		s = do_send(ch, s) or { break }

vlib/v/fmt/tests/go_stmt_keep.vv

@@ -2,7 +2,7 @@ import sync
 
 fn go_with_anon_fn() {
 	wg.add(1)
-	go fn (mut wg sync.WaitGroup) {
+	spawn fn (mut wg sync.WaitGroup) {
 		wg.done()
 	}(mut wg)
 	wg.wait()

vlib/v/fmt/tests/select_keep.vv

@@ -82,7 +82,7 @@ fn test_select_blocks() {
 	}
 	assert r == true
 	assert t == true
-	go f2(ch2, ch3, sem)
+	spawn f2(ch2, ch3, sem)
 	n := <-ch3
 	assert n == 23
 	ch2 <- St{
@@ -90,7 +90,7 @@ fn test_select_blocks() {
 	}
 	sem.wait()
 	stopwatch := time.new_stopwatch()
-	go f1(ch1, ch2, ch3, ch4, ch5, sem)
+	spawn f1(ch1, ch2, ch3, ch4, ch5, sem)
 	sem.wait()
 	elapsed_ms := f64(stopwatch.elapsed()) / time.millisecond
 	assert elapsed_ms >= 295.0