Link type will be check in android_library also

For now, Soong checks link-type in java_library, so it cannot block hidden api usage from android_library that app links with.
So we should add check in 'android_library'

Test: m nothing
Change-Id: Ic040270ec668bdd693b690ac8a88be1048922c3b

java/app_test.go

@@ -399,18 +399,21 @@ func TestAndroidResources(t *testing.T) {
 
 			android_library {
 				name: "lib",
+				sdk_version: "current",
 				resource_dirs: ["lib/res"],
 				static_libs: ["lib2"],
 			}
 
 			android_library {
 				name: "lib2",
+				sdk_version: "current",
 				resource_dirs: ["lib2/res"],
 			}
 
 			// This library has the same resources as lib (should not lead to dupe RROs)
 			android_library {
 				name: "lib3",
+				sdk_version: "current",
 				resource_dirs: ["lib/res"]
 			}
 		`

java/java.go

@@ -672,7 +672,12 @@ const (
 	javaPlatform
 )
 
-func getLinkType(m *Module, name string) (ret linkType, stubs bool) {
+type linkTypeContext interface {
+	android.Module
+	getLinkType(name string) (ret linkType, stubs bool)
+}
+
+func (m *Module) getLinkType(name string) (ret linkType, stubs bool) {
 	ver := m.sdkVersion()
 	switch {
 	case name == "core.current.stubs" || name == "core.platform.api.stubs" ||
@@ -703,16 +708,16 @@ func getLinkType(m *Module, name string) (ret linkType, stubs bool) {
 	}
 }
 
-func checkLinkType(ctx android.ModuleContext, from *Module, to *Library, tag dependencyTag) {
+func checkLinkType(ctx android.ModuleContext, from *Module, to linkTypeContext, tag dependencyTag) {
 	if ctx.Host() {
 		return
 	}
 
-	myLinkType, stubs := getLinkType(from, ctx.ModuleName())
+	myLinkType, stubs := from.getLinkType(ctx.ModuleName())
 	if stubs {
 		return
 	}
-	otherLinkType, _ := getLinkType(&to.Module, ctx.OtherModuleName(to))
+	otherLinkType, _ := to.getLinkType(ctx.OtherModuleName(to))
 	commonMessage := "Adjust sdk_version: property of the source or target module so that target module is built with the same or smaller API set than the source."
 
 	switch myLinkType {
@@ -769,13 +774,16 @@ func (j *Module) collectDeps(ctx android.ModuleContext) deps {
 			// Handled by AndroidApp.collectAppDeps
 			return
 		}
-
-		if to, ok := module.(*Library); ok {
+		switch module.(type) {
+		case *Library:
+		case *AndroidLibrary:
+			if to, ok := module.(linkTypeContext); ok {
 				switch tag {
 				case bootClasspathTag, libTag, staticLibTag:
 					checkLinkType(ctx, j, to, tag.(dependencyTag))
 				}
 			}
+		}
 		switch dep := module.(type) {
 		case SdkLibraryDependency:
 			switch tag {