New J2K: fix converting multiline comment with /* inside

#KT-18001 fixed
#KT-35081 fixed

nj2k/testData/newJ2k/comments/beginningOfCommentInsideMultilineOne.java

@@ -0,0 +1,16 @@
+/**
+ /* comment
+ */
+class A
+
+
+/**
+ /** / B
+ */
+class B
+
+
+/**
+ /** / C
+ /*/
+class C

nj2k/testData/newJ2k/comments/beginningOfCommentInsideMultilineOne.kt

@@ -0,0 +1,14 @@
+/**
+ * / * comment
+ */
+internal class A
+
+/**
+ * / ** / B
+ */
+internal class B
+
+/**
+ * / ** / C
+ * / */
+internal class C