Add "Find Usages" tests for nested/inner classes and objects

idea/testData/findUsages/java/findJavaClassUsages/JKInnerClassAllUsages.0.java

@@ -0,0 +1,11 @@
+// PSI_ELEMENT: com.intellij.psi.PsiClass
+// OPTIONS: usages
+public class Outer {
+    public class <caret>A {
+        public String bar = "bar";
+
+        public void foo() {
+
+        }
+    }
+}

idea/testData/findUsages/java/findJavaClassUsages/JKInnerClassAllUsages.1.kt

@@ -0,0 +1,31 @@
+public class KOuter: Outer() {
+    public inner class X(bar: String? = (this@KOuter : Outer).A().bar): Outer.A() {
+        var next: Outer.A? = (this@KOuter : Outer).A()
+        val myBar: String? = (this@KOuter : Outer).A().bar
+
+        {
+            (this@KOuter : Outer).A().bar = ""
+        }
+
+        fun foo(a: Outer.A) {
+            val aa: Outer.A = a
+            aa.bar = ""
+        }
+
+        fun getNext(): Outer.A? {
+            return next
+        }
+
+        public override fun foo() {
+            super<Outer.A>.foo()
+        }
+    }
+}
+
+fun KOuter.X.bar(a: Outer.A = Outer().A()) {
+
+}
+
+fun Any.toA(): Outer.A? {
+    return if (this is Outer.A) this as Outer.A else null
+}

idea/testData/findUsages/java/findJavaClassUsages/JKInnerClassAllUsages.results.txt

@@ -0,0 +1,15 @@
+Class/object property type (3: 25) var next: Outer.A? = (this@KOuter : Outer).A()
+Function return types (15: 30) fun getNext(): Outer.A? {
+Function return types (29: 22) fun Any.toA(): Outer.A? {
+Local variable declaration (11: 27) val aa: Outer.A = a
+New instance creation (25: 39) fun KOuter.X.bar(a: Outer.A = Outer().A()) {
+New instance creation (2: 63) public inner class X(bar: String? = (this@KOuter : Outer).A().bar): Outer.A() {
+New instance creation (3: 52) var next: Outer.A? = (this@KOuter : Outer).A()
+New instance creation (4: 52) val myBar: String? = (this@KOuter : Outer).A().bar
+New instance creation (7: 35) (this@KOuter : Outer).A().bar = ""
+Parameter type (10: 26) fun foo(a: Outer.A) {
+Parameter type (25: 27) fun KOuter.X.bar(a: Outer.A = Outer().A()) {
+Super type qualifier (20: 25) super<Outer.A>.foo()
+Supertype (2: 79) public inner class X(bar: String? = (this@KOuter : Outer).A().bar): Outer.A() {
+Target type of 'is' operation (30: 30) return if (this is Outer.A) this as Outer.A else null
+Usage in cast target type (30: 47) return if (this is Outer.A) this as Outer.A else null

idea/testData/findUsages/java/findJavaClassUsages/JKNestedClassAllUsages.0.java

@@ -0,0 +1,17 @@
+// PSI_ELEMENT: com.intellij.psi.PsiClass
+// OPTIONS: usages
+public class Outer {
+    public static class <caret>A {
+        public String bar = "bar";
+        public static String BAR = "BAR";
+
+        public void foo() {
+
+        }
+
+        public static void foos() {
+
+        }
+    }
+}
+

idea/testData/findUsages/java/findJavaClassUsages/JKNestedClassAllUsages.1.kt

@@ -0,0 +1,38 @@
+public class X(bar: String? = Outer.A.BAR): Outer.A() {
+    var next: Outer.A? = Outer.A()
+    val myBar: String? = Outer.A.BAR
+
+    {
+        Outer.A.BAR = ""
+        Outer.A.foos()
+    }
+
+    fun foo(a: Outer.A) {
+        val aa: Outer.A = a
+        aa.bar = ""
+    }
+
+    fun getNext(): Outer.A? {
+        return next
+    }
+
+    public override fun foo() {
+        super<Outer.A>.foo()
+    }
+
+    class object: Outer.A() {
+
+    }
+}
+
+object O: Outer.A() {
+
+}
+
+fun X.bar(a: Outer.A = Outer.A()) {
+
+}
+
+fun Any.toA(): Outer.A? {
+    return if (this is Outer.A) this as Outer.A else null
+}

idea/testData/findUsages/java/findJavaClassUsages/JKNestedClassAllUsages.results.txt

@@ -0,0 +1,18 @@
+Class/object property type (2: 21) var next: Outer.A? = Outer.A()
+Function return types (15: 26) fun getNext(): Outer.A? {
+Function return types (36: 22) fun Any.toA(): Outer.A? {
+Local variable declaration (11: 23) val aa: Outer.A = a
+Nested class/object (1: 37) public class X(bar: String? = Outer.A.BAR): Outer.A() {
+Nested class/object (3: 32) val myBar: String? = Outer.A.BAR
+Nested class/object (6: 15) Outer.A.BAR = ""
+Nested class/object (7: 15) Outer.A.foos()
+New instance creation (2: 32) var next: Outer.A? = Outer.A()
+New instance creation (32: 30) fun X.bar(a: Outer.A = Outer.A()) {
+Parameter type (10: 22) fun foo(a: Outer.A) {
+Parameter type (32: 20) fun X.bar(a: Outer.A = Outer.A()) {
+Super type qualifier (20: 21) super<Outer.A>.foo()
+Supertype (1: 51) public class X(bar: String? = Outer.A.BAR): Outer.A() {
+Supertype (23: 25) class object: Outer.A() {
+Supertype (28: 17) object O: Outer.A() {
+Target type of 'is' operation (37: 30) return if (this is Outer.A) this as Outer.A else null
+Usage in cast target type (37: 47) return if (this is Outer.A) this as Outer.A else null