Improve the structure of the link check method

Match by name first, then by kind.

Bug: 157010342
Test: m
Change-Id: Ic337a073c3bd14ac03b1d899aeb612247a708495

java/java.go

@@ -827,41 +827,42 @@ type linkTypeContext interface {
 }
 
 func (m *Module) getLinkType(name string) (ret linkType, stubs bool) {
-	ver := m.sdkVersion()
-	switch {
-	case name == "core.current.stubs" || name == "core.platform.api.stubs" ||
-		name == "stub-annotations" || name == "private-stub-annotations-jar" ||
-		name == "core-lambda-stubs" || name == "core-generated-annotation-stubs":
+	switch name {
+	case "core.current.stubs", "core.platform.api.stubs", "stub-annotations",
+		"private-stub-annotations-jar", "core-lambda-stubs", "core-generated-annotation-stubs":
 		return javaCore, true
-	case ver.kind == sdkCore:
-		return javaCore, false
-	case name == "android_system_stubs_current":
-		return javaSystem, true
-	case ver.kind == sdkSystem:
-		return javaSystem, false
-	case name == "android_test_stubs_current":
-		return javaSystem, true
-	case ver.kind == sdkTest:
-		return javaPlatform, false
-	case name == "android_stubs_current":
+	case "android_stubs_current":
 		return javaSdk, true
-	case ver.kind == sdkPublic:
-		return javaSdk, false
-	case name == "android_module_lib_stubs_current":
+	case "android_system_stubs_current":
+		return javaSystem, true
+	case "android_module_lib_stubs_current":
 		return javaModule, true
-	case ver.kind == sdkModule:
-		return javaModule, false
-	case name == "android_system_server_stubs_current":
+	case "android_system_server_stubs_current":
 		return javaSystemServer, true
-	case ver.kind == sdkSystemServer:
-		return javaSystemServer, false
-	case ver.kind == sdkPrivate || ver.kind == sdkNone || ver.kind == sdkCorePlatform:
-		return javaPlatform, false
-	case !ver.valid():
-		panic(fmt.Errorf("sdk_version is invalid. got %q", ver.raw))
-	default:
-		return javaSdk, false
+	case "android_test_stubs_current":
+		return javaSystem, true
 	}
+
+	ver := m.sdkVersion()
+	switch ver.kind {
+	case sdkCore:
+		return javaCore, false
+	case sdkSystem:
+		return javaSystem, false
+	case sdkPublic:
+		return javaSdk, false
+	case sdkModule:
+		return javaModule, false
+	case sdkSystemServer:
+		return javaSystemServer, false
+	case sdkPrivate, sdkNone, sdkCorePlatform, sdkTest:
+		return javaPlatform, false
+	}
+
+	if !ver.valid() {
+		panic(fmt.Errorf("sdk_version is invalid. got %q", ver.raw))
+	}
+	return javaSdk, false
 }
 
 func checkLinkType(ctx android.ModuleContext, from *Module, to linkTypeContext, tag dependencyTag) {