[Gradle, wasm] add checker about changed wasm source sets

^KT-61950 fixed

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/diagnostics/KotlinGradleProjectChecker.kt

@@ -115,6 +115,7 @@ internal interface KotlinGradleProjectChecker {
             IosSourceSetConventionChecker,
             KotlinTargetAlreadyDeclaredChecker,
             InternalGradlePropertiesUsageChecker,
+            WasmSourceSetsNotFoundChecker,
         )
     }
 }

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/diagnostics/KotlinToolingDiagnostics.kt

@@ -642,6 +642,19 @@ object KotlinToolingDiagnostics {
             """.trimIndent(),
         )
     }
+
+    object WasmSourceSetsNotFoundError : ToolingDiagnosticFactory(ERROR) {
+        operator fun invoke(nameOfRequestedSourceSet: String) = build(
+            """
+                KotlinSourceSet with name '$nameOfRequestedSourceSet' not found:
+                The SourceSet requested ('$nameOfRequestedSourceSet') was renamed in Kotlin 1.9.20
+    
+                In order to migrate you might want to replace: 
+                val wasmMain by getting -> val wasmJsMain by getting
+                val wasmTest by getting -> val wasmJsTest by getting
+            """.trimIndent()
+        )
+    }
 }
 
 private fun String.indentLines(nSpaces: Int = 4, skipFirstLine: Boolean = true): String {

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/diagnostics/checkers/WasmSourceSetsNotFoundChecker.kt

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2010-2023 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.
+ */
+
+package org.jetbrains.kotlin.gradle.plugin.diagnostics.checkers
+
+import org.gradle.api.UnknownDomainObjectException
+import org.jetbrains.kotlin.gradle.plugin.KotlinPluginLifecycle
+import org.jetbrains.kotlin.gradle.plugin.configurationResult
+import org.jetbrains.kotlin.gradle.plugin.diagnostics.KotlinGradleProjectChecker
+import org.jetbrains.kotlin.gradle.plugin.diagnostics.KotlinGradleProjectCheckerContext
+import org.jetbrains.kotlin.gradle.plugin.diagnostics.KotlinToolingDiagnostics
+import org.jetbrains.kotlin.gradle.plugin.diagnostics.KotlinToolingDiagnosticsCollector
+import org.jetbrains.kotlin.tooling.core.withClosure
+
+internal object WasmSourceSetsNotFoundChecker : KotlinGradleProjectChecker {
+
+    private val wasmSourceSetRegex by lazy { Regex("""(wasmMain|wasmTest)\w*""") }
+
+    override suspend fun KotlinGradleProjectCheckerContext.runChecks(collector: KotlinToolingDiagnosticsCollector) {
+        val failure = project.configurationResult.await() as? KotlinPluginLifecycle.ProjectConfigurationResult.Failure ?: return
+
+        val unknownWasmSourceSetNames = failure
+            .failures
+            .withClosure<Throwable> { listOfNotNull(it.cause) }
+            .filterIsInstance<UnknownDomainObjectException>()
+            .filter { it.message.orEmpty().contains("KotlinSourceSet") }
+            .mapNotNull { wasmSourceSetRegex.find(it.message.orEmpty()) }
+            .map { it.value }
+
+        unknownWasmSourceSetNames.forEach { unknownWasmSourceSetName ->
+            collector.report(project, KotlinToolingDiagnostics.WasmSourceSetsNotFoundError(unknownWasmSourceSetName))
+        }
+    }
+}

libraries/tools/kotlin-gradle-plugin/src/functionalTest/kotlin/org/jetbrains/kotlin/gradle/unitTests/diagnosticsTests/WasmSourceSetsNotFoundErrorTest.kt

@@ -0,0 +1,59 @@
+/*
+ * Copyright 2010-2023 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.
+ */
+
+@file:Suppress("FunctionName")
+
+package org.jetbrains.kotlin.gradle.unitTests.diagnosticsTests
+
+import org.jetbrains.kotlin.gradle.dsl.multiplatformExtension
+import org.jetbrains.kotlin.gradle.plugin.KotlinPluginLifecycle
+import org.jetbrains.kotlin.gradle.plugin.diagnostics.KotlinToolingDiagnostics
+import org.jetbrains.kotlin.gradle.plugin.diagnostics.ToolingDiagnostic
+import org.jetbrains.kotlin.gradle.plugin.diagnostics.kotlinToolingDiagnosticsCollector
+import org.jetbrains.kotlin.gradle.plugin.launchInStage
+import org.jetbrains.kotlin.gradle.util.assertContainsDiagnostic
+import org.jetbrains.kotlin.gradle.util.assertNoDiagnostics
+import org.jetbrains.kotlin.gradle.util.buildProjectWithMPP
+import org.junit.Test
+import kotlin.test.assertFails
+
+class WasmSourceSetsNotFoundErrorTest {
+
+    @Test
+    fun `wasmMain SourceSet`() {
+        diagnosticsForTestProjectRequestingMissingSourceSet("wasmMain")
+            .assertContainsDiagnostic(KotlinToolingDiagnostics.WasmSourceSetsNotFoundError("wasmMain"))
+    }
+
+    @Test
+    fun `wasmTest SourceSet`() {
+        diagnosticsForTestProjectRequestingMissingSourceSet("wasmTest")
+            .assertContainsDiagnostic(KotlinToolingDiagnostics.WasmSourceSetsNotFoundError("wasmTest"))
+    }
+
+    @Test
+    fun `wasmJsMain SourceSet - is not reported`() {
+        diagnosticsForTestProjectRequestingMissingSourceSet("wasmJsMain")
+            .assertNoDiagnostics(KotlinToolingDiagnostics.WasmSourceSetsNotFoundError)
+    }
+
+    @Test
+    fun `wasmJsTest SourceSet - is not reported`() {
+        diagnosticsForTestProjectRequestingMissingSourceSet("wasmJsTest")
+            .assertNoDiagnostics(KotlinToolingDiagnostics.WasmSourceSetsNotFoundError)
+    }
+
+    private fun diagnosticsForTestProjectRequestingMissingSourceSet(sourceSetName: String): List<ToolingDiagnostic> {
+        val project = buildProjectWithMPP()
+        val kotlin = project.multiplatformExtension
+
+        project.launchInStage(KotlinPluginLifecycle.Stage.AfterEvaluateBuildscript) {
+            kotlin.sourceSets.getByName(sourceSetName)
+        }
+
+        assertFails { project.evaluate() }
+        return project.kotlinToolingDiagnosticsCollector.getDiagnosticsForProject(project).toList()
+    }
+}