Unused symbol inspection: properties declared in primary constructor are now checked on 'Used' annotations #KT-11120 Fixed

idea/src/org/jetbrains/kotlin/idea/inspections/UnusedSymbolInspection.kt

@@ -74,10 +74,11 @@ class UnusedSymbolInspection : AbstractKotlinInspection() {
             val lightElement: PsiElement? = when (declaration) {
                 is KtClassOrObject -> declaration.toLightClass()
                 is KtNamedFunction, is KtSecondaryConstructor -> LightClassUtil.getLightClassMethod(declaration as KtFunction)
-                is KtProperty -> {
+                is KtProperty, is KtParameter -> {
+                    if (declaration is KtParameter && !declaration.hasValOrVar()) return false
                     // can't rely on light element, check annotation ourselves
                     val descriptor = declaration.descriptor ?: return false
-                    val entryPointsManager = EntryPointsManager.getInstance(declaration.getProject()) as EntryPointsManagerBase
+                    val entryPointsManager = EntryPointsManager.getInstance(declaration.project) as EntryPointsManagerBase
                     return checkAnnotatedUsingPatterns(
                             descriptor,
                             entryPointsManager.additionalAnnotations + entryPointsManager.ADDITIONAL_ANNOTATIONS

idea/testData/inspections/unusedSymbol/property/inspectionData/expected.xml

@@ -25,4 +25,13 @@
     <problem_class severity="WARNING" attribute_key="NOT_USED_ELEMENT_ATTRIBUTES">Unused Symbol</problem_class>
     <description>Property 'unused' is never used</description>
   </problem>
+
+  <problem>
+    <file>unusedButEntryPointAnnotated.kt</file>
+    <line>4</line>
+    <module>light_idea_test_case</module>
+    <entry_point TYPE="file" FQNAME="temp:///src/unusedButEntryPointAnnotated.kt" />
+    <problem_class severity="WARNING" attribute_key="NOT_USED_ELEMENT_ATTRIBUTES">Unused symbol</problem_class>
+    <description>Class 'Owner' is never used</description>
+  </problem>
 </problems>

idea/testData/inspections/unusedSymbol/property/unusedButEntryPointAnnotated.kt

@@ -1,2 +1,6 @@
 @test.anno.EntryPoint
-val entryPoint = ""
+val entryPoint = ""
+
+class Owner(@test.anno.EntryPoint val xx: Int) {
+    @test.anno.EntryPoint val yy = 42
+}