Mpp: fix production internals not visible from tests in platform modules

Caused by change in mpp resolve
Happened in platform modules that have expectedBy dependencies

#KT-24729 Fixed

idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/project/IdeaModuleInfos.kt

@@ -443,6 +443,8 @@ class PlatformModuleInfo(
 
     override fun dependencies() = platformModule.dependencies()
 
+    override fun modulesWhoseInternalsAreVisible() = containedModules.flatMap { it.modulesWhoseInternalsAreVisible() }
+
     override val name: Name
         get() = Name.special("<Platform module ${platformModule.displayedName} including ${commonModules.map { it.displayedName }}>")
 

idea/testData/multiModuleHighlighting/multiplatform/internalDependencyFromTests/b_common/common.kt

@@ -0,0 +1,4 @@
+package foo
+
+internal fun commonF() {}
+internal class CommonC

idea/testData/multiModuleHighlighting/multiplatform/internalDependencyFromTests/b_common_tests/commonTests.kt

@@ -0,0 +1,6 @@
+package foo
+
+fun useС() {
+    commonF()
+    CommonC()
+}

idea/testData/multiModuleHighlighting/multiplatform/internalDependencyFromTests/b_js/js.kt

@@ -0,0 +1,4 @@
+package foo
+
+internal fun jsF() {}
+internal class JsC

idea/testData/multiModuleHighlighting/multiplatform/internalDependencyFromTests/b_js_tests/jsTests.kt

@@ -0,0 +1,9 @@
+package foo
+
+fun use() {
+    commonF()
+    CommonC()
+
+    jsF()
+    JsC()
+}

idea/testData/multiModuleHighlighting/multiplatform/internalDependencyFromTests/b_jvm/jvm.kt

@@ -0,0 +1,4 @@
+package foo
+
+internal fun jvmF() {}
+internal class JvmC

idea/testData/multiModuleHighlighting/multiplatform/internalDependencyFromTests/b_jvm_tests/jvmTests.kt

@@ -0,0 +1,9 @@
+package foo
+
+fun use() {
+    commonF()
+    CommonC()
+
+    jvmF()
+    JvmC()
+}

idea/tests/org/jetbrains/kotlin/idea/caches/resolve/MultiPlatformHighlightingTestGenerated.java

@@ -84,6 +84,11 @@ public class MultiPlatformHighlightingTestGenerated extends AbstractMultiPlatfor
         runTest("idea/testData/multiModuleHighlighting/multiplatform/internal/");
     }
 
+    @TestMetadata("internalDependencyFromTests")
+    public void testInternalDependencyFromTests() throws Exception {
+        runTest("idea/testData/multiModuleHighlighting/multiplatform/internalDependencyFromTests/");
+    }
+
     @TestMetadata("nestedClassWithoutImpl")
     public void testNestedClassWithoutImpl() throws Exception {
         runTest("idea/testData/multiModuleHighlighting/multiplatform/nestedClassWithoutImpl/");