[FIR] Insert fake source for FIR for array access temporaries

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignWithArrayAccessConvention_propertyAccess.kt

@@ -0,0 +1,8 @@
+interface MyMap<K, V> {
+    operator fun get(k: K): V
+    operator fun set(k: K, v: V)
+}
+
+fun test(m: MyMap<String, Int>) {
+    <expr>m</expr>["a"] += 1
+}

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignWithArrayAccessConvention_propertyAccess.txt

@@ -0,0 +1,6 @@
+KT element: KtNameReferenceExpression
+FIR element: FirPropertyAccessExpressionImpl
+FIR source kind: KtRealSourceElementKind
+
+FIR element rendered:
+R|<local>/m|

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/incWithArrayAccessConvention.kt

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+interface A {
+    operator fun inc(): A
+}
+
+interface MyMap<K, V> {
+    operator fun get(k: K): V
+    operator fun set(k: K, v: V): Unit
+}
+
+fun test(m: MyMap<String, A>) {
+    <expr>m["a"]++</expr>
+}

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/incWithArrayAccessConvention.txt

@@ -0,0 +1,6 @@
+KT element: KtPostfixExpression
+FIR element: FirFunctionCallImpl
+FIR source kind: DesugaredIncrementOrDecrement
+
+FIR element rendered:
+R|<local>/<array>|.R|SubstitutionOverride</MyMap.set: R|kotlin/Unit|>|(R|<local>/<index_0>|, R|<local>/<unary>|.R|/A.inc|())

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/incWithArrayAccessConvention_propertyAccess.kt

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+interface A {
+    operator fun inc(): A
+}
+
+interface MyMap<K, V> {
+    operator fun get(k: K): V
+    operator fun set(k: K, v: V): Unit
+}
+
+fun test(m: MyMap<String, A>) {
+    <expr>m</expr>["a"]++
+}

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/incWithArrayAccessConvention_propertyAccess.txt

@@ -0,0 +1,6 @@
+KT element: KtNameReferenceExpression
+FIR element: FirPropertyAccessExpressionImpl
+FIR source kind: KtRealSourceElementKind
+
+FIR element rendered:
+R|<local>/m|

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/incWithArrayAccessConvention_set.kt

@@ -0,0 +1,12 @@
+interface A {
+    operator fun inc(): A
+}
+
+interface MyMap<K, V> {
+    operator fun get(k: K): V
+    operator fun set(k: K, v: V): Unit
+}
+
+fun test(m: MyMap<String, A>) {
+    <expr>m["a"]</expr>++
+}

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/incWithArrayAccessConvention_set.txt

@@ -0,0 +1,6 @@
+KT element: KtArrayAccessExpression
+FIR element: FirResolvedNamedReferenceImpl
+FIR source kind: KtRealSourceElementKind
+
+FIR element rendered:
+R|SubstitutionOverride</MyMap.set: R|kotlin/Unit|>|

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/GetOrBuildFirTestGenerated.java

@@ -133,6 +133,12 @@ public class GetOrBuildFirTestGenerated extends AbstractGetOrBuildFirTest {
             runTest("analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignWithArrayAccessConvention_lhs.kt");
         }
 
+        @Test
+        @TestMetadata("compoundAssignWithArrayAccessConvention_propertyAccess.kt")
+        public void testCompoundAssignWithArrayAccessConvention_propertyAccess() throws Exception {
+            runTest("analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignWithArrayAccessConvention_propertyAccess.kt");
+        }
+
         @Test
         @TestMetadata("compoundAssignWithArrayGetConvention.kt")
         public void testCompoundAssignWithArrayGetConvention() throws Exception {
@@ -163,6 +169,24 @@ public class GetOrBuildFirTestGenerated extends AbstractGetOrBuildFirTest {
             runTest("analysis/low-level-api-fir/testdata/getOrBuildFir/calls/functionCallArgumentList.kt");
         }
 
+        @Test
+        @TestMetadata("incWithArrayAccessConvention.kt")
+        public void testIncWithArrayAccessConvention() throws Exception {
+            runTest("analysis/low-level-api-fir/testdata/getOrBuildFir/calls/incWithArrayAccessConvention.kt");
+        }
+
+        @Test
+        @TestMetadata("incWithArrayAccessConvention_propertyAccess.kt")
+        public void testIncWithArrayAccessConvention_propertyAccess() throws Exception {
+            runTest("analysis/low-level-api-fir/testdata/getOrBuildFir/calls/incWithArrayAccessConvention_propertyAccess.kt");
+        }
+
+        @Test
+        @TestMetadata("incWithArrayAccessConvention_set.kt")
+        public void testIncWithArrayAccessConvention_set() throws Exception {
+            runTest("analysis/low-level-api-fir/testdata/getOrBuildFir/calls/incWithArrayAccessConvention_set.kt");
+        }
+
         @Test
         @TestMetadata("invokeCallArgumentList.kt")
         public void testInvokeCallArgumentList() throws Exception {

compiler/fir/raw-fir/light-tree2fir/tests/org/jetbrains/kotlin/fir/lightTree/PathWalker.kt

@@ -13,6 +13,7 @@ fun String.walkTopDown(f: (File) -> Unit) {
         if (file.isDirectory) continue
         if (file.path.contains("kotlin-native") ||
             file.path.contains("testData") ||
+            file.path.contains("testdata") ||
             file.path.contains("resources")) continue
         if (file.extension != "kt") continue
 

compiler/fir/raw-fir/raw-fir.common/src/org/jetbrains/kotlin/fir/builder/BaseFirBuilder.kt

@@ -802,7 +802,7 @@ abstract class BaseFirBuilder<T>(val baseSession: FirSession, val context: Conte
 
             val arrayVariable = generateTemporaryVariable(
                 baseModuleData,
-                array?.toFirSourceElement(),
+                array?.toFirSourceElement(KtFakeSourceElementKind.ArrayAccessNameReference),
                 name = SpecialNames.ARRAY,
                 initializer = arrayReceiver,
             ).also { statements += it }