Better testing

idea/testData/findUsages/kotlin/conventions/components/dataClass.0.java

@@ -12,4 +12,10 @@ class JavaClass {
     }
 
     public void takeA(A a){}
+
+    private A getAPrivate() {
+        return new A(1, "", "");
+    }
+
+    private void takeAPrivate(A a){}
 }

idea/testData/findUsages/kotlin/conventions/components/mayTypeAffectAncestors.0.kt

@@ -0,0 +1,35 @@
+// PSI_ELEMENT: org.jetbrains.kotlin.psi.KtParameter
+// OPTIONS: usages
+
+data class A(val <caret>n: Int, val s: String)
+
+data class B(val x: Int, val y: Int)
+
+fun condition(a: A) = true
+
+fun x(a: A, b: Boolean, list: List<Int>) {
+    val (x, y) = if (condition(a)) {
+        print(A(1, "").toString())
+        B(1, 2)
+    }
+    else {
+        B(3, 4)
+    }
+
+    val (x1, y1) = if (b) {
+        A(1, "").apply { val (x2, y2) = this }
+    }
+    else {
+        return
+    }
+
+    if (list.any { it == 0 }) {
+        A(1, "")
+    }
+}
+
+fun y1(a: A) = condition(a)
+fun y2(a: A): Boolean = condition(a)
+fun y3(a: A) {
+    condition(a)
+}

idea/testData/findUsages/kotlin/conventions/components/mayTypeAffectAncestors.log

@@ -0,0 +1,12 @@
+Checked type of (x1, y1)
+Checked type of y1()
+Searched inheritors of A
+Searched references to A
+Searched references to parameter a in condition() in Kotlin files
+Searched references to parameter a in x() in Kotlin files
+Searched references to parameter a in y1() in Kotlin files
+Searched references to parameter a in y2() in Kotlin files
+Searched references to parameter a in y3() in Kotlin files
+Used plain search in LocalSearchScope:
+    CLASS:A
+    { val (x2, y2) = this }

idea/testData/findUsages/kotlin/conventions/components/mayTypeAffectAncestors.results.txt

@@ -0,0 +1,2 @@
+Value read 19 val (x1, y1) = if (b) {
+Value read 20 A(1, "").apply { val (x2, y2) = this }

idea/tests/org/jetbrains/kotlin/findUsages/FindUsagesTestGenerated.java

@@ -242,6 +242,12 @@ public class FindUsagesTestGenerated extends AbstractFindUsagesTest {
                     doTest(fileName);
                 }
 
+                @TestMetadata("mayTypeAffectAncestors.0.kt")
+                public void testMayTypeAffectAncestors() throws Exception {
+                    String fileName = KotlinTestUtils.navigationMetadata("idea/testData/findUsages/kotlin/conventions/components/mayTypeAffectAncestors.0.kt");
+                    doTest(fileName);
+                }
+
                 @TestMetadata("memberComponentFun.0.kt")
                 public void testMemberComponentFun() throws Exception {
                     String fileName = KotlinTestUtils.navigationMetadata("idea/testData/findUsages/kotlin/conventions/components/memberComponentFun.0.kt");