[kotlin] KTIJ-36482 Fixed completion not having an expected type for property accessor without body

^KTIJ-36482 fixed

GitOrigin-RevId: 9f4af6ae6025bf27202775eab253a181199c1a85

plugins/kotlin/completion/impl-k2/src/org/jetbrains/kotlin/idea/completion/impl/k2/K2CompletionRunner.kt

@@ -16,6 +16,7 @@ import org.jetbrains.kotlin.analysis.api.components.KaCompletionExtensionCandida
 import org.jetbrains.kotlin.analysis.api.components.expectedType
 import org.jetbrains.kotlin.analysis.api.components.expressionType
 import org.jetbrains.kotlin.analysis.api.components.render
+import org.jetbrains.kotlin.analysis.api.components.returnType
 import org.jetbrains.kotlin.analysis.api.impl.base.components.KaBaseIllegalPsiException
 import org.jetbrains.kotlin.analysis.api.types.KaType
 import org.jetbrains.kotlin.analysis.api.types.symbol
@@ -163,6 +164,7 @@ private fun createWeighingContext(
     return when (positionContext) {
         is KotlinNameReferencePositionContext -> {
             val nameExpression = positionContext.nameExpression
+            val nameExpressionParent = nameExpression.parent
             val expectedType = when {
                 // during the sorting of completion suggestions expected type from position and actual types of suggestions are compared;
                 // see `org.jetbrains.kotlin.idea.completion.weighers.ExpectedTypeWeigher`;
@@ -171,8 +173,16 @@ private fun createWeighingContext(
                 // TODO: calculate actual types for callable references correctly and use information about expected type
                 positionContext is KotlinCallableReferencePositionContext -> null
                 nameExpression.expectedType != null -> nameExpression.expectedType
-                nameExpression.parent is KtBinaryExpression -> getEqualityExpectedType(nameExpression)
-                nameExpression.parent is KtCollectionLiteralExpression -> getAnnotationLiteralExpectedType(nameExpression)
+                nameExpressionParent is KtBinaryExpression -> getEqualityExpectedType(nameExpression)
+                nameExpressionParent is KtCollectionLiteralExpression -> getAnnotationLiteralExpectedType(nameExpression)
+                // TODO: This can be removed after KT-82534 has been fixed
+                nameExpressionParent is KtPropertyAccessor -> {
+                    if (nameExpressionParent.isGetter) {
+                        nameExpressionParent.property.returnType
+                    } else {
+                        null
+                    }
+                }
                 else -> null
             }
             if (parameters.completionType == CompletionType.SMART

plugins/kotlin/completion/testData/weighers/basic/expectedType/propertyAccessor.kt

@@ -0,0 +1,12 @@
+class Foo
+
+val somePrefixA: Int = 5
+val somePrefixB: Foo = Foo()
+val somePrefixC: Int = 5
+
+val testing: Foo
+    get() {
+        return somePrefix<caret>
+    }
+
+// ORDER: somePrefixB, somePrefixA, somePrefixC

plugins/kotlin/completion/tests-k1/test/org/jetbrains/kotlin/idea/completion/test/weighers/BasicCompletionWeigherTestGenerated.java

@@ -356,6 +356,11 @@ public abstract class BasicCompletionWeigherTestGenerated extends AbstractBasicC
                 runTest("../testData/weighers/basic/expectedType/MatchingNullableType.kt");
             }
 
+            @TestMetadata("propertyAccessor.kt")
+            public void testPropertyAccessor() throws Exception {
+                runTest("../testData/weighers/basic/expectedType/propertyAccessor.kt");
+            }
+
             @TestMetadata("returnFromFunction.kt")
             public void testReturnFromFunction() throws Exception {
                 runTest("../testData/weighers/basic/expectedType/returnFromFunction.kt");

plugins/kotlin/fir/tests/test/org/jetbrains/kotlin/idea/fir/completion/wheigher/HighLevelWeigherTestGenerated.java

@@ -356,6 +356,11 @@ public abstract class HighLevelWeigherTestGenerated extends AbstractHighLevelWei
                 runTest("../../completion/testData/weighers/basic/expectedType/MatchingNullableType.kt");
             }
 
+            @TestMetadata("propertyAccessor.kt")
+            public void testPropertyAccessor() throws Exception {
+                runTest("../../completion/testData/weighers/basic/expectedType/propertyAccessor.kt");
+            }
+
             @TestMetadata("returnFromFunction.kt")
             public void testReturnFromFunction() throws Exception {
                 runTest("../../completion/testData/weighers/basic/expectedType/returnFromFunction.kt");