New J2K: do not merge methods if there are vararg parameters present

nj2k/testData/newJ2k/methodCallExpression/defaultParamsWithVararg.java

@@ -0,0 +1,8 @@
+public final class Test {
+    public static void checkState(boolean condition, String message, Object... args) {
+    }
+
+    public static void checkState(boolean condition) {
+        checkState(condition, "condition not met");
+    }
+}

nj2k/testData/newJ2k/methodCallExpression/defaultParamsWithVararg.kt

@@ -0,0 +1,6 @@
+object Test {
+    fun checkState(condition: Boolean, message: String?, vararg args: Any?) {}
+    fun checkState(condition: Boolean) {
+        checkState(condition, "condition not met")
+    }
+}