Apply "Kotlin | Assignment can be replaced with operator assignment" on whole project

^KTIJ-25352

GitOrigin-RevId: ed3283325767f207167717ca703a102f4eb50e66

java/idea-ui/testSrc/com/intellij/openapi/projectRoots/impl/jdkDownloader/JdkUpdateTest.kt

@@ -181,7 +181,7 @@ class JdkUpdateTest : BareTestFixtureTestCase() {
     Assert.assertEquals(1, listOurActions().size)
 
     runWriteAction {
-      old1.jdk.sdkModificator.also { it.homePath = it.homePath + "-123" }.commitChanges()
+      old1.jdk.sdkModificator.also { it.homePath += "-123" }.commitChanges()
     }
     service<JdkUpdaterNotifications>().showNotification(old1.jdk, old1.oldItem, old1.newItem)
 

notebooks/visualization/src/org/jetbrains/plugins/notebooks/visualization/r/inlays/components/HSLUtil.kt

@@ -67,7 +67,7 @@ fun convertHSLtoRGB(hslFloats: FloatArray, alpha: Float): Int {
     throw IllegalArgumentException(message)
   }
   //  Formula needs all values between 0 - 1.
-  h = h % 360.0f
+  h %= 360.0f
   h /= 360f
   s /= 100f
   l /= 100f

platform/diff-impl/src/com/intellij/diff/tools/combined/CombinedDiffBlocks.kt

@@ -205,7 +205,7 @@ private class CombinedSimpleDiffBlock(project: Project,
       someError = maxOf(e.gutterComponentEx.preferredSize.height - body.targetComponent.preferredSize.height, someError)
     }
     if (someError > 0) {
-      preferredSize.height = preferredSize.height + someError
+      preferredSize.height += someError
     }
     return preferredSize
   }

platform/platform-impl/src/com/intellij/internal/ui/uiDslTestAction/OnChangePanel.kt

@@ -83,6 +83,6 @@ internal class OnChangePanel {
 
   private fun log(component: JComponent, context: ChangeContext, text: String? = null) {
     val textLog = if (text == null) "" else "($text)"
-    log.text = log.text + "component = ${component::class.java.name}$textLog, binding = ${context.binding}, event: ${context.event}\n"
+    log.text += "component = ${component::class.java.name}$textLog, binding = ${context.binding}, event: ${context.event}\n"
   }
 }

platform/platform-impl/src/com/intellij/toolWindow/ToolWindowDragHelper.kt

@@ -290,7 +290,7 @@ internal class ToolWindowDragHelper(parent: Disposable, @JvmField val dragSource
       else {
         dragMoreButtonNewSide = LEFT
       }
-      bounds.width = bounds.width / 3
+      bounds.width /= 3
       dropTargetHighlightComponent.bounds = bounds
       relocateImageDialog(event)
       return

platform/workspaceModel/jps/src/com/intellij/workspaceModel/ide/impl/jps/serialization/ModuleImlFileEntitiesSerializer.kt

@@ -504,8 +504,8 @@ internal open class ModuleImlFileEntitiesSerializer(internal val modulePath: Mod
       else {
 
         (contentRoot as ContentRootEntity.Builder).apply {
-          this.sourceRoots = this.sourceRoots + sourceRoots
-          this.excludedUrls = this.excludedUrls + excludes
+          this.sourceRoots += sourceRoots
+          this.excludedUrls += excludes
         }
         // Add order of source roots
         if (sourceRootOrder != null) {

platform/workspaceModel/storage/tests/testSrc/com/intellij/platform/workspaceModel/storage/tests/DiffBuilderTest.kt

@@ -431,7 +431,7 @@ class DiffBuilderTest {
     val child = source addEntity XChildWithOptionalParentEntity(parentAndChildProperty, MySource)
     val parent = source addEntity XParentEntity(parentAndChildProperty, MySource)
     source.modifyEntity(parent) {
-      this.optionalChildren = this.optionalChildren + child
+      this.optionalChildren += child
     }
 
     target.addDiff(source)

platform/xdebugger-impl/src/com/intellij/xdebugger/impl/ui/attach/dialog/AttachToProcessDialog.kt

@@ -245,7 +245,7 @@ open class AttachToProcessDialog(
           return
         }
         if (isNonPrintable(e.keyCode)) return
-        filterTextField.text = filterTextField.text + e.keyChar
+        filterTextField.text += e.keyChar
       }
     }
     list.getFocusedComponent().addKeyListener(keyListener)

plugins/kotlin/idea/tests/test/org/jetbrains/kotlin/idea/run/StandaloneScriptRunConfigurationTest.kt

@@ -128,7 +128,7 @@ class StandaloneScriptRunConfigurationTest : KotlinCodeInsightTestCase() {
         val runConfiguration = createConfigurationFromElement(script, save = true) as KotlinStandaloneScriptRunConfiguration
 
         Assert.assertEquals("script.kts", runConfiguration.name)
-        runConfiguration.workingDirectory = runConfiguration.workingDirectory + "/customWorkingDirectory"
+        runConfiguration.workingDirectory += "/customWorkingDirectory"
         val scriptVirtualFileBefore = script.containingFile.virtualFile
         val originalPath = scriptVirtualFileBefore.canonicalPath
         val originalWorkingDirectory = scriptVirtualFileBefore.parent.canonicalPath + "/customWorkingDirectory"

plugins/kotlin/j2k/new/src/org/jetbrains/kotlin/nj2k/JavaToJKTreeBuilder.kt

@@ -1215,7 +1215,7 @@ class JavaToJKTreeBuilder(
                 }
 
                 else ->
-                    cases.lastOrNull()?.also { it.statements = it.statements + statement.toJK() } ?: run {
+                    cases.lastOrNull()?.also { it.statements += statement.toJK() } ?: run {
                         cases += JKJavaClassicLabelSwitchCase(
                             listOf(JKStubExpression()),
                             listOf(statement.toJK())