Remove unused function parameter: do not propose for property setter parameter

#KT-29606 Fixed

idea/src/org/jetbrains/kotlin/idea/quickfix/RemoveUnusedFunctionParameterFix.kt

@@ -70,7 +70,10 @@ class RemoveUnusedFunctionParameterFix(parameter: KtParameter) : KotlinQuickFixA
         override fun createAction(diagnostic: Diagnostic): KotlinQuickFixAction<KtParameter>? {
             val parameter = Errors.UNUSED_PARAMETER.cast(diagnostic).psiElement
             val parameterOwner = parameter.parent.parent
-            if (parameterOwner is KtFunctionLiteral || (parameterOwner is KtNamedFunction && parameterOwner.name == null)) return null
+            if (parameterOwner is KtFunctionLiteral
+                || (parameterOwner is KtNamedFunction && parameterOwner.name == null)
+                || parameterOwner is KtPropertyAccessor
+            ) return null
             return RemoveUnusedFunctionParameterFix(parameter)
         }
 

idea/testData/quickfix/changeSignature/removeUnusedParameterOfPropertySetter.kt

@@ -0,0 +1,7 @@
+// "Remove parameter 'value'" "false"
+// ACTION: Specify type explicitly
+class Abacaba {
+    var foo: String
+        get() = ""
+        set(<caret>value) {}
+}

idea/tests/org/jetbrains/kotlin/idea/quickfix/QuickFixTestGenerated.java

@@ -1909,6 +1909,11 @@ public class QuickFixTestGenerated extends AbstractQuickFixTest {
             runTest("idea/testData/quickfix/changeSignature/removeUnusedParameter.kt");
         }
 
+        @TestMetadata("removeUnusedParameterOfPropertySetter.kt")
+        public void testRemoveUnusedParameterOfPropertySetter() throws Exception {
+            runTest("idea/testData/quickfix/changeSignature/removeUnusedParameterOfPropertySetter.kt");
+        }
+
         @TestMetadata("removeUnusedParameterWithTypeParameter.kt")
         public void testRemoveUnusedParameterWithTypeParameter() throws Exception {
             runTest("idea/testData/quickfix/changeSignature/removeUnusedParameterWithTypeParameter.kt");