Changes inside initscript and pluginManagement blocks should invalidate script configuration

^KT-35129 Fixed

idea/idea-gradle/src/org/jetbrains/kotlin/idea/scripting/gradle/utils.kt

@@ -20,6 +20,8 @@ import org.jetbrains.kotlin.psi.KtFile
 import org.jetbrains.kotlin.psi.KtScriptInitializer
 import org.jetbrains.kotlin.psi.psiUtil.getChildrenOfType
 
+private val sections = arrayListOf("buildscript", "plugins", "initscript", "pluginManagement")
+
 fun isGradleKotlinScript(virtualFile: VirtualFile) = virtualFile.name.endsWith(".gradle.kts")
 
 fun getGradleScriptInputsStamp(
@@ -38,8 +40,8 @@ fun getGradleScriptInputsStamp(
                 ?.getChildrenOfType<KtScriptInitializer>()
                 ?.forEach {
                     val call = it.children.singleOrNull() as? KtCallExpression
-                    val callRef = call?.firstChild?.text
+                    val callRef = call?.firstChild?.text ?: return@forEach
-                    if (callRef == "buildscript" || callRef == "plugins") {
+                    if (callRef in sections) {
                         result.append(callRef)
                         val lambda = call.lambdaArguments.singleOrNull()
                         lambda?.accept(object : PsiRecursiveElementVisitor(false) {

idea/idea-gradle/tests/org/jetbrains/kotlin/idea/scripting/gradle/GradleScriptInputsWatcherTest.kt

@@ -71,6 +71,22 @@ class GradleScriptInputsWatcherTest : AbstractScriptConfigurationLoadingTest() {
         assertConfigurationUpToDate(testFiles.buildKts)
     }
 
+    fun testSectionsInSettingsChange() {
+        assertAndLoadInitialConfiguration(testFiles.settings)
+
+        changeSettingsKtsInsideSections()
+
+        assertConfigurationUpdateWasDone(testFiles.settings)
+    }
+
+    fun testOutsideSectionsInSettingsChange() {
+        assertAndLoadInitialConfiguration(testFiles.settings)
+
+        changeSettingsKtsOutsideSections()
+
+        assertConfigurationUpToDate(testFiles.settings)
+    }
+
     private fun assertConfigurationUpToDate(file: KtFile) {
         scriptConfigurationManager.updater.ensureUpToDatedConfigurationSuggested(file)
         assertNoBackgroundTasks()