runtime panics are not recoverable.

[dgryski]

~/go/src/github.com/dgryski/bug/rp $ cat main.go
package main

//go:noinline
func read(a []byte) byte {
	return a[2]
}

func main() {
	defer func() {
		if r := recover(); r != nil {
			println("caught a panic")
		}
	}()

	a := []byte{1}

	read(a)
}
~/go/src/github.com/dgryski/bug/rp $ go run main.go
caught a panic
~/go/src/github.com/dgryski/bug/rp $ tinygo run main.go
panic: runtime error: index out of range
error: failed to run compiled binary /var/folders/5b/_hr1d1fd3qn4t9vtfx5p61wm0000gp/T/tinygo4189450643/main: signal: abort trap

This is because runtimePanic() doesn't call _panic() but leads directly to abort().

https://github.com/tinygo-org/tinygo/blob/release/src/runtime/panic.go#L56

[dgryski]

Fix here: #3511

[dgryski]

Discovered while trying to get https://github.com/rasky/go-lzo/blob/master/decompress.go#L155 to work.