Add ClassLoaderContextMap.Dump()

Test: n/a
Change-Id: I1e1ad0093301a463d8d03b07cf58710b65e3dc6d

dexpreopt/class_loader_context.go

@@ -15,6 +15,7 @@
 package dexpreopt
 
 import (
+	"encoding/json"
 	"fmt"
 	"sort"
 	"strconv"
@@ -360,6 +361,15 @@ func (clcMap ClassLoaderContextMap) UsesLibs() (ulibs []string) {
 	return ulibs
 }
 
+func (clcMap ClassLoaderContextMap) Dump() string {
+	jsonCLC := toJsonClassLoaderContext(clcMap)
+	bytes, err := json.MarshalIndent(jsonCLC, "", "  ")
+	if err != nil {
+		panic(err)
+	}
+	return string(bytes)
+}
+
 // Now that the full unconditional context is known, reconstruct conditional context.
 // Apply filters for individual libraries, mirroring what the PackageManager does when it
 // constructs class loader context on device.