[Gradle] KT-48818 Add tests for subprojects

Reuse already existing function to assert that
build log does not contain certain sub-strings

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

@@ -493,13 +493,6 @@ abstract class BaseGradleIT {
         return this
     }
 
-    fun CompiledProject.assertDoesNotContain(vararg notExpected: String, ignoreCase: Boolean = false): CompiledProject {
-        for (str in notExpected) {
-            assertFalse(output.contains(str.normalize(), ignoreCase), "Output should not contain '$str'")
-        }
-        return this
-    }
-
     fun CompiledProject.assertContainsRegex(expected: Regex): CompiledProject {
         assertTrue(expected.containsMatchIn(output), "Output should contain pattern '$expected'")
         return this

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

@@ -30,6 +30,9 @@ internal class MppFlagsMigrationIT : BaseGradleIT() {
     @Parameterized.Parameter(0)
     lateinit var testCase: TestCase
 
+    @Parameterized.Parameter(1)
+    lateinit var testProjectName: String
+
     companion object {
         @OptIn(ExperimentalStdlibApi::class)
         private val testCases = buildList {
@@ -99,13 +102,19 @@ internal class MppFlagsMigrationIT : BaseGradleIT() {
             })
         }
 
-        @Parameterized.Parameters(name = "{0}")
+        private val projectsToTest = listOf(
+            "new-mpp-published",
+            "hierarchical-mpp-project-dependency"
+        )
+
+        @Parameterized.Parameters(name = "{1}: {0}")
         @JvmStatic
-        fun testCases() = testCases.map { arrayOf(it) }
+        fun testCases() = testCases
+            .flatMap { testCase -> projectsToTest.map { arrayOf(testCase, it) } }
     }
 
     val testProject by lazy {
-        Project("new-mpp-published").apply {
+        Project(testProjectName).apply {
             setupWorkingDir()
             gradleBuildScript().modify(::transformBuildScriptWithPluginsDsl)
             gradleProperties().delete()
@@ -137,7 +146,7 @@ internal class MppFlagsMigrationIT : BaseGradleIT() {
                 assertFailed()
 
             testCase.expectedPhraseInOutput?.let { assertContains(it, ignoreCase = true) }
-            testCase.notExpectedPhraseInOutput?.let { assertDoesNotContain(it, ignoreCase = true) }
+            testCase.notExpectedPhraseInOutput?.let { assertNotContains(it) }
         }
     }
 }