Add test spec provider to test modules.

Provider added for the following test modules in this change: art_cc_test, cc_benchmark, cc_fuzz, cc_test, cc_test_host, rust_test,and rust_test_host.

Bug: 296873595
Test: Manual test
Change-Id: I815680529bcbecacb3a2bdb8f3746053afdee48c

cc/Android.bp

@@ -19,6 +19,7 @@ bootstrap_go_package {
         "soong-multitree",
         "soong-snapshot",
         "soong-sysprop-bp2build",
+        "soong-testing",
         "soong-tradefed",
     ],
     srcs: [

cc/cc.go

@@ -24,6 +24,7 @@ import (
 	"strconv"
 	"strings"
 
+	"android/soong/testing"
 	"android/soong/ui/metrics/bp2build_metrics_proto"
 
 	"github.com/google/blueprint"
@@ -862,9 +863,10 @@ type Module struct {
 	Properties       BaseProperties
 
 	// initialize before calling Init
-	hod       android.HostOrDeviceSupported
-	multilib  android.Multilib
-	bazelable bool
+	hod        android.HostOrDeviceSupported
+	multilib   android.Multilib
+	bazelable  bool
+	testModule bool
 
 	// Allowable SdkMemberTypes of this module type.
 	sdkMemberTypes []android.SdkMemberType
@@ -2329,6 +2331,9 @@ func (c *Module) GenerateAndroidBuildActions(actx android.ModuleContext) {
 			}
 		}
 	}
+	if c.testModule {
+		ctx.SetProvider(testing.TestModuleProviderKey, testing.TestModuleProviderData{})
+	}
 
 	c.maybeInstall(ctx, apexInfo)
 }

cc/fuzz.go

@@ -96,6 +96,7 @@ func fuzzMutatorDeps(mctx android.TopDownMutatorContext) {
 // your device, or $ANDROID_PRODUCT_OUT/data/fuzz in your build tree.
 func LibFuzzFactory() android.Module {
 	module := NewFuzzer(android.HostAndDeviceSupported)
+	module.testModule = true
 	return module.Init()
 }
 

cc/test.go

@@ -141,6 +141,7 @@ func init() {
 func TestFactory() android.Module {
 	module := NewTest(android.HostAndDeviceSupported, true)
 	module.bazelHandler = &ccTestBazelHandler{module: module}
+	module.testModule = true
 	return module.Init()
 }
 
@@ -158,12 +159,14 @@ func TestLibraryFactory() android.Module {
 // binary.
 func BenchmarkFactory() android.Module {
 	module := NewBenchmark(android.HostAndDeviceSupported)
+	module.testModule = true
 	return module.Init()
 }
 
 // cc_test_host compiles a test host binary.
 func TestHostFactory() android.Module {
 	module := NewTest(android.HostSupported, true)
+	module.testModule = true
 	return module.Init()
 }