build: separate compiler and libs

cl/_testlibc/defer/in.go

@@ -1,17 +0,0 @@
-package main
-
-import "github.com/goplus/llgo/c"
-
-func f(s string) bool {
-	return len(s) > 2
-}
-
-func main() {
-	c.GoDeferData()
-	if s := "hello"; f(s) {
-		defer c.Printf(c.Str("%s\n"), c.AllocaCStr(s))
-	} else {
-		defer c.Printf(c.Str("world\n"))
-	}
-	defer c.Printf(c.Str("bye\n"))
-}

cl/_testlibc/defer/out.ll

@@ -1 +0,0 @@
-;