Introduce MultiModuleHighlightingTest

Checks that analysis produces expected diagnostics when configured by real IDEA module

idea/testData/multiModuleHighlighting/dependency/m3/m3.kt

@@ -0,0 +1,8 @@
+package foo
+
+public fun accessM3() {
+    <error>accessM1</error>()
+    accessM2()
+    accessM3()
+    <error>accessM4</error>()
+}