Convert Function to Property: Forbid for properties with both initializer and getter

#KT-23293 Fixed

idea/src/org/jetbrains/kotlin/idea/intentions/ConvertPropertyToFunctionIntention.kt

@@ -191,7 +191,7 @@ class ConvertPropertyToFunctionIntention : SelfTargetingIntention<KtProperty>(Kt
     override fun isApplicableTo(element: KtProperty, caretOffset: Int): Boolean {
         val identifier = element.nameIdentifier ?: return false
         if (!identifier.textRange.containsOffset(caretOffset)) return false
-        return element.delegate == null && !element.isVar && !element.isLocal
+        return element.delegate == null && !element.isVar && !element.isLocal && (element.initializer == null || element.getter == null)
     }
 
     override fun applyTo(element: KtProperty, editor: Editor?) {

idea/testData/intentions/convertPropertyToFunction/initializerWithGetter.kt

@@ -0,0 +1,5 @@
+// IS_APPLICABLE: false
+val <caret>foo = 1
+    get() {
+        return field
+    }

idea/tests/org/jetbrains/kotlin/idea/intentions/IntentionTestGenerated.java

@@ -6147,6 +6147,12 @@ public class IntentionTestGenerated extends AbstractIntentionTest {
             doTest(fileName);
         }
 
+        @TestMetadata("initializerWithGetter.kt")
+        public void testInitializerWithGetter() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("idea/testData/intentions/convertPropertyToFunction/initializerWithGetter.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("javaUsageAsField.kt")
         public void testJavaUsageAsField() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("idea/testData/intentions/convertPropertyToFunction/javaUsageAsField.kt");