New J2K: add ReplaceGuardClause inspection to post-processing

#KT-22412 Fixed

nj2k/testData/newJ2k/postProcessing/GuardClause.java

@@ -0,0 +1,7 @@
+public class Test {
+    void test(String s) {
+        if (s == null) {
+            throw new IllegalArgumentException("s should not be null");
+        }
+    }
+}

nj2k/testData/newJ2k/postProcessing/GuardClause.kt

@@ -0,0 +1,5 @@
+class Test {
+    internal fun test(s: String?) {
+        requireNotNull(s) { "s should not be null" }
+    }
+}