Fix quick evaluation for array expressions (KT-13268)

idea/idea-jvm/src/org/jetbrains/kotlin/idea/debugger/KotlinEditorTextProvider.kt

@@ -70,42 +70,20 @@ class KotlinEditorTextProvider : EditorTextProvider {
                 }
             }
 
+            fun KtExpression.qualifiedParentOrSelf(isSelector: Boolean = true): KtExpression {
+                val parent = parent
+                return if (parent is KtQualifiedExpression && (!isSelector || parent.selectorExpression == this)) parent else this
+            }
+
             val parent = ktElement.parent
 
             val newExpression = when (parent) {
                 is KtThisExpression -> parent
-                is KtSuperExpression -> {
-                    val pparent = parent.parent
-                    when (pparent) {
-                        is KtQualifiedExpression -> pparent
-                        else -> parent
-                    }
-                }
-                is KtReferenceExpression -> {
-                    val pparent = parent.parent
-                    if (pparent is KtQualifiedExpression && pparent.selectorExpression == parent) {
-                        pparent
-                    }
-                    else {
-                        parent
-                    }
-                }
-                is KtQualifiedExpression -> {
-                    if (parent.receiverExpression != ktElement) {
-                        parent
-                    }
-                    else {
-                        null
-                    }
-                }
-                is KtOperationExpression -> {
-                    if (parent.operationReference == ktElement) {
-                        parent
-                    }
-                    else {
-                        null
-                    }
-                }
+                is KtSuperExpression -> parent.qualifiedParentOrSelf(isSelector = false)
+                is KtArrayAccessExpression -> if (parent.arrayExpression == ktElement) ktElement else parent.qualifiedParentOrSelf()
+                is KtReferenceExpression -> parent.qualifiedParentOrSelf()
+                is KtQualifiedExpression -> if (parent.receiverExpression != ktElement) parent else null
+                is KtOperationExpression -> if (parent.operationReference == ktElement) parent else null
                 else -> null
             }
 

idea/testData/debugger/selectExpression/arrayExpression.kt

@@ -0,0 +1,5 @@
+fun foo(arr: Array<String>) {
+    a<caret>rr[0]
+}
+
+// EXPECTED: arr

idea/tests/org/jetbrains/kotlin/idea/debugger/evaluate/SelectExpressionForDebuggerTestGenerated.java

@@ -36,6 +36,11 @@ public class SelectExpressionForDebuggerTestGenerated extends AbstractSelectExpr
             runTest("idea/testData/debugger/selectExpression/annotation.kt");
         }
 
+        @TestMetadata("arrayExpression.kt")
+        public void testArrayExpression() throws Exception {
+            runTest("idea/testData/debugger/selectExpression/arrayExpression.kt");
+        }
+
         @TestMetadata("binaryExpression.kt")
         public void testBinaryExpression() throws Exception {
             runTest("idea/testData/debugger/selectExpression/binaryExpression.kt");