Fix for EA-81477 : correct handling of a property without initializer (but with e.g. getter)

(cherry picked from commit 4e2d35a)

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

@@ -64,7 +64,9 @@ class ChangeFunctionLiteralReturnTypeFix(
         val eventualFunctionLiteralType = TypeUtils.substituteParameters(functionClass, functionClassTypeParameters)
 
         val correspondingProperty = PsiTreeUtil.getParentOfType(functionLiteralExpression, KtProperty::class.java)
-        if (correspondingProperty != null && QuickFixUtil.canEvaluateTo(correspondingProperty.initializer!!, functionLiteralExpression)) {
+        if (correspondingProperty != null &&
+            correspondingProperty.initializer?.let { QuickFixUtil.canEvaluateTo(it, functionLiteralExpression) } ?: true
+        ) {
             val correspondingPropertyTypeRef = correspondingProperty.typeReference
             val propertyType = context.get(BindingContext.TYPE, correspondingPropertyTypeRef)
             return if (propertyType != null && !KotlinTypeChecker.DEFAULT.isSubtypeOf(eventualFunctionLiteralType, propertyType))

idea/testData/quickfix/typeMismatch/typeMismatchOnReturnedExpression/literalPropertyWithGetter.kt

@@ -0,0 +1,4 @@
+// "Change 'complex' type to '(Int) -> Long'" "true"
+
+val complex: (Int) -> String
+    get() = { it.toLong()<caret> }

idea/testData/quickfix/typeMismatch/typeMismatchOnReturnedExpression/literalPropertyWithGetter.kt.after

@@ -0,0 +1,4 @@
+// "Change 'complex' type to '(Int) -> Long'" "true"
+
+val complex: (Int) -> Long
+    get() = { it.toLong() }

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

@@ -8370,6 +8370,12 @@ public class QuickFixTestGenerated extends AbstractQuickFixTest {
                 doTest(fileName);
             }
 
+            @TestMetadata("literalPropertyWithGetter.kt")
+            public void testLiteralPropertyWithGetter() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("idea/testData/quickfix/typeMismatch/typeMismatchOnReturnedExpression/literalPropertyWithGetter.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("multiFakeOverride.kt")
             public void testMultiFakeOverride() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("idea/testData/quickfix/typeMismatch/typeMismatchOnReturnedExpression/multiFakeOverride.kt");