api-impl: stubs and fixes for latest WhatsApp version

src/api-impl/android/content/pm/PackageInfo.java

@@ -243,4 +243,10 @@ public class PackageInfo {
 	public int describeContents() {
 		return 0;
 	}
+
+	public long getLongVersionCode() {
+		return versionCode;
+	}
+
+	public SigningInfo signingInfo = new SigningInfo();
 }

src/api-impl/android/content/pm/ShortcutManager.java

@@ -0,0 +1,15 @@
+package android.content.pm;
+
+import java.util.Collections;
+import java.util.List;
+
+public class ShortcutManager {
+	public void removeAllDynamicShortcuts() {
+	}
+
+	public List getShortcuts(int matchFlags) {
+		return Collections.emptyList();
+	}
+	public void removeLongLivedShortcuts(List<String> shortcutIds) {
+	}
+}

src/api-impl/android/content/pm/SigningInfo.java

@@ -0,0 +1,7 @@
+package android.content.pm;
+
+public final class SigningInfo {
+	public Signature[] getApkContentsSigners() {
+		return null;
+	}
+}