build: separate compiler and libs

compiler/cl/_testgo/defer5/in.go

@@ -0,0 +1,17 @@
+package main
+
+func main() {
+	defer println("A")
+	defer func() {
+		if e := recover(); e != nil {
+			println("in defer 1")
+			panic("panic in defer 1")
+		}
+	}()
+	defer func() {
+		println("in defer 2")
+		panic("panic in defer 2")
+	}()
+	defer println("B")
+	panic("panic in main")
+}