Ensure java_system_modules_import uses prebuilts

Make sure that java_system_modules_import always depends on the
prebuilt by adding dependencies in the ComponentDepsMutator() method
which is called before prebuilts without a corresponding source are
renamed from prebuilt_<x> to <x>. That requires the prebuilt_ prefix
to be provided but it ensures that the dependencies are safe.

Similar logic also makes sure java_system_modules always depends on
the source module and not on a renamed prebuilt module.

Bug: 182402568
Test: m nothing
Change-Id: I30db95978f5d9b205951011edf40585ee36c0c4c
diff --git a/java/system_modules_test.go b/java/system_modules_test.go
index a8d7b02..44049ee 100644
--- a/java/system_modules_test.go
+++ b/java/system_modules_test.go
@@ -107,7 +107,6 @@
 	prebuiltInputs := prebuiltSystemModules.Rule("jarsTosystemModules").Inputs
 
 	// The expected paths are the header jars from the renamed prebuilt input modules.
-	// TODO(b/182402568) - these should be depending on the prebuilts
-	expectedPrebuiltPaths := normalizedPathsToHeaderJars(result, "system-module1", "system-module2")
+	expectedPrebuiltPaths := normalizedPathsToHeaderJars(result, "prebuilt_system-module1", "prebuilt_system-module2")
 	result.AssertArrayString("prebuilt system modules inputs", expectedPrebuiltPaths, result.NormalizePathsForTesting(prebuiltInputs))
 }