Make setPhraseChoiceRearward match the original design of libchewing (int, not boolean)

Signed-off-by: Hui-Hong You <hiroshi@ghostsinthelab.org>

Author: hiroshiyui

app/src/main/cpp/app.cpp

@@ -189,13 +189,13 @@ extern "C" JNIEXPORT void JNICALL
 Java_com_miyabi_1hiroshi_app_libchewing_1android_1app_1module_Chewing_setPhraseChoiceRearward(
         JNIEnv *env,
         jobject,
-        jboolean boolean,
+        jint mode,
         jlong chewing_ctx_ptr) {
     auto *ctx = reinterpret_cast<ChewingContext *>(chewing_ctx_ptr);
     __android_log_print(ANDROID_LOG_VERBOSE, LOGTAG,
-                        "Set phrase choice rearward to (%d) from context ptr: %lld", (jint) boolean,
+                        "Set phrase choice rearward to (%d) from context ptr: %lld", (jint) mode,
                         (long long) ctx);
-    chewing_set_phraseChoiceRearward(ctx, boolean);
+    chewing_set_phraseChoiceRearward(ctx, mode);
 }
 
 extern "C" JNIEXPORT jboolean JNICALL

app/src/main/java/com/miyabi_hiroshi/app/libchewing_android_app_module/Chewing.kt

@@ -96,7 +96,7 @@ class Chewing {
     external fun setEasySymbolInput(mode: Int, chewingCtx: Long = context)
     external fun setKBType(type: Int, chewingCtx: Long = context): Int
     external fun setMaxChiSymbolLen(length: Int, chewingCtx: Long = context)
-    external fun setPhraseChoiceRearward(boolean: Boolean, chewingCtx: Long = context)
+    external fun setPhraseChoiceRearward(mode: Int, chewingCtx: Long = context)
     external fun setSelKey(selKeys: IntArray, length: Int, chewingCtx: Long = context)
     external fun setSpaceAsSelection(mode: Int, chewingCtx: Long = context)