Unused symbol inspection should detect enum entry

#KT-30612 Fixed

idea/testData/quickfix/removeUnused/simpleUnusedEnumEntry.kt

@@ -0,0 +1,9 @@
+// "Safe delete 'WORLD'" "true"
+enum class MyEnum {
+    HELLO,
+    WORLD<caret>
+}
+
+fun main() {
+    MyEnum.HELLO
+}

idea/testData/quickfix/removeUnused/simpleUnusedEnumEntry.kt.after

@@ -0,0 +1,8 @@
+// "Safe delete 'WORLD'" "true"
+enum class MyEnum {
+    HELLO,
+}
+
+fun main() {
+    MyEnum.HELLO
+}

idea/testData/quickfix/removeUnused/unusedEnumEntry.kt

@@ -0,0 +1,13 @@
+// "Safe delete 'WORLD'" "true"
+enum class MyEnum(val i: Int) {
+    HELLO(42),
+    WORLD<caret>("42"),
+    E(24)
+    ;
+
+    constructor(s: String): this(42)
+}
+
+fun test() {
+    MyEnum.HELLO
+}

idea/testData/quickfix/removeUnused/unusedEnumEntry.kt.after

@@ -0,0 +1,12 @@
+// "Safe delete 'WORLD'" "true"
+enum class MyEnum(val i: Int) {
+    HELLO(42),
+    E(24)
+    ;
+
+    constructor(s: String): this(42)
+}
+
+fun test() {
+    MyEnum.HELLO
+}

idea/testData/quickfix/removeUnused/unusedEnumEntry2.kt

@@ -0,0 +1,12 @@
+// "Safe delete 'WORLD'" "true"
+enum class MyEnum(val i: Int) {
+    WORLD<caret>("42"),
+    HELLO(42)
+    ;
+
+    constructor(s: String): this(42)
+}
+
+fun test() {
+    MyEnum.HELLO
+}

idea/testData/quickfix/removeUnused/unusedEnumEntry2.kt.after

@@ -0,0 +1,11 @@
+// "Safe delete 'WORLD'" "true"
+enum class MyEnum(val i: Int) {
+    HELLO(42)
+    ;
+
+    constructor(s: String): this(42)
+}
+
+fun test() {
+    MyEnum.HELLO
+}

idea/testData/quickfix/removeUnused/unusedEnumEntry3.kt

@@ -0,0 +1,4 @@
+// "Safe delete 'HELLO'" "true"
+enum class MyEnum {
+    HELLO<caret>
+}

idea/testData/quickfix/removeUnused/unusedEnumEntry3.kt.after

@@ -0,0 +1,3 @@
+// "Safe delete 'HELLO'" "true"
+enum class MyEnum {
+}

idea/testData/quickfix/removeUnused/unusedEnumEntry4.kt

@@ -0,0 +1,4 @@
+// "Safe delete 'HELLO'" "true"
+enum class MyEnum {
+    HELLO<caret>,
+}

idea/testData/quickfix/removeUnused/unusedEnumEntry4.kt.after

@@ -0,0 +1,3 @@
+// "Safe delete 'HELLO'" "true"
+enum class MyEnum {
+}

idea/testData/quickfix/removeUnused/unusedEnumEntry5.kt

@@ -0,0 +1,6 @@
+// "Safe delete 'HELLO'" "true"
+import MyEnum.HELLO
+
+enum class MyEnum {
+    HELLO<caret>,
+}

idea/testData/quickfix/removeUnused/unusedEnumEntry5.kt.after

@@ -0,0 +1,4 @@
+// "Safe delete 'HELLO'" "true"
+
+enum class MyEnum {
+}