Fix resources processing configuration

* Add resources processing to the K/N compilations

* Use a proper resources output path (composed from target + compilation
  rather than just compilation name)

* Fix incorrect reassignment of the resources directory

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/NewMultiplatformIT.kt

@@ -163,6 +163,23 @@ class NewMultiplatformIT : BaseGradleIT() {
         }
     }
 
+    @Test
+    fun testResourceProcessing() = with(Project("sample-lib", gradleVersion, "new-mpp-lib-and-app")) {
+        val targetsWithResources = listOf("jvm6", "wasm32", nativeHostTargetName)
+        val processResourcesTasks =
+            targetsWithResources.map { ":${it}ProcessResources" }
+
+        build(*processResourcesTasks.toTypedArray()) {
+            assertSuccessful()
+            assertTasksExecuted(*processResourcesTasks.toTypedArray())
+
+            targetsWithResources.forEach {
+                assertFileExists("build/processedResources/$it/main/commonMainResource.txt")
+                assertFileExists("build/processedResources/$it/main/${it}MainResource.txt")
+            }
+        }
+    }
+
     @Test
     fun testSourceSetCyclicDependencyDetection() = with(Project("sample-lib", gradleVersion, "new-mpp-lib-and-app")) {
         setupWorkingDir()

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-lib/src/commonMain/resources/commonMainResource.txt

@@ -0,0 +1 @@
+resource

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-lib/src/jvm6Main/resources/jvm6MainResource.txt

@@ -0,0 +1 @@
+resource

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-lib/src/linux64Main/resources/linux64MainResource.txt

@@ -0,0 +1 @@
+resource

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-lib/src/macos64Main/resources/macos64MainResource.txt

@@ -0,0 +1 @@
+resource

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-lib/src/mingw64Main/resources/mingw64MainResource.txt

@@ -0,0 +1 @@
+resource

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-lib/src/nodeJsMain/resources/nodeJsMainResource.txt

@@ -0,0 +1 @@
+resource

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-lib/src/wasm32Main/resources/wasm32MainResource.txt

@@ -0,0 +1 @@
+resource