Do not show doc-comment references in data flow

idea/testData/slicer/outflow/docCommentRefs.java

@@ -0,0 +1,6 @@
+/**
+ * @see KotlinClass#foo()
+ */
+class JavaClass {
+
+}

idea/testData/slicer/outflow/docCommentRefs.kt

@@ -0,0 +1,12 @@
+// FLOW: OUT
+
+class KotlinClass {
+    fun <caret>foo(): Int = 10
+
+    /**
+     * Uses [foo]
+     */
+    fun bar() {
+        val v = foo()
+    }
+}

idea/testData/slicer/outflow/docCommentRefs.results.txt

@@ -0,0 +1,3 @@
+4 fun <bold>foo(): Int = 10</bold>
+10 	val v = <bold>foo()</bold>
+10 		val <bold>v = foo()</bold>

idea/testData/slicer/outflow/docCommentRefs2.kt

@@ -0,0 +1,11 @@
+// FLOW: OUT
+
+val String.<caret>foo: Int
+    get() = 10
+
+/**
+ * Uses [foo]
+ */
+fun bar() {
+    val v = "".foo
+}

idea/testData/slicer/outflow/docCommentRefs2.results.txt

@@ -0,0 +1,3 @@
+3 val String.<bold>foo: Int</bold>
+10 	val v = "".<bold>foo</bold>
+10 		val <bold>v = "".foo</bold>