Fix for KT-13818

Javadoc @code conversion

j2k/testData/fileOrElement/docComments/inlineTagsInDocComment.kt

@@ -1,4 +1,4 @@
 /**
- * `A<B`
+ * `A<B`
  */
 class C

j2k/testData/fileOrElement/docComments/quoted.java

@@ -0,0 +1,11 @@
+/**
+ * Start.
+ * Plain quote: 'quoted'
+ * KT-13818: {@code 'quoted'}
+ * Code: {@code someCode()}
+ * Operators: {@code a > b}
+ * String: {@code str = "String"}
+ * Generic: {@code List<T>}
+ * End.
+ */
+public class Quote {}

j2k/testData/fileOrElement/docComments/quoted.kt

@@ -0,0 +1,11 @@
+/**
+ * Start.
+ * Plain quote: 'quoted'
+ * KT-13818: `'quoted'`
+ * Code: `someCode()`
+ * Operators: `a > b`
+ * String: `str = "String"`
+ * Generic: `List<T>`
+ * End.
+ */
+class Quote