Fixed import of MPP project with single Android target

#KT-34639 Fixed

idea/kotlin-gradle-tooling/src/KotlinMPPGradleModelBuilder.kt

@@ -668,6 +668,18 @@ class KotlinMPPGradleModelBuilder : ModelBuilderService {
         }
 
         for (sourceSet in sourceSets.values) {
+            if (!isHMPPEnabled) {
+                val name = sourceSet.name
+                if (name == KotlinSourceSet.COMMON_MAIN_SOURCE_SET_NAME) {
+                    sourceSet.isTestModule = false
+                    continue
+                }
+                if (name == KotlinSourceSet.COMMON_TEST_SOURCE_SET_NAME) {
+                    sourceSet.isTestModule = true
+                    continue
+                }
+            }
+
             (allSourceSetToCompilations[sourceSet]?.all { it.isTestModule }
                 ?: if (!isHMPPEnabled && sourceSet.name == KotlinSourceSet.COMMON_TEST_SOURCE_SET_NAME) true else null)?.let { isTest ->
                 sourceSet.isTestModule = isTest

idea/kotlin-gradle-tooling/src/KotlinMPPGradleModelImpl.kt

@@ -242,7 +242,13 @@ class KotlinPlatformContainerImpl() : KotlinPlatformContainer {
     override fun supports(simplePlatform: KotlinPlatform): Boolean = platforms.contains(simplePlatform)
 
     override fun addSimplePlatforms(platforms: Collection<KotlinPlatform>) {
-        (myPlatforms ?: HashSet<KotlinPlatform>().apply { myPlatforms = this }).addAll(platforms)
+        (myPlatforms ?: HashSet<KotlinPlatform>().apply { myPlatforms = this }).let {
+            it.addAll(platforms)
+            if (it.contains(KotlinPlatform.COMMON)) {
+                it.clear()
+                it.addAll(defaultCommonPlatform)
+            }
+        }
     }
 }