Rename spring-boot-loader to spring-boot-loader-classic

Rename the `spring-boot-loader` module to `spring-boot-loader-classic`
so that we can introduce an alternative loader implementation.

See gh-37669

spring-boot-tests/spring-boot-integration-tests/spring-boot-loader-classic-tests/build.gradle

@@ -4,7 +4,7 @@ plugins {
 	id "org.springframework.boot.integration-test"
 }
 
-description = "Spring Boot Loader Integration Tests"
+description = "Spring Boot Classic Loader Integration Tests"
 
 configurations {
 	app
@@ -28,13 +28,13 @@ task syncMavenRepository(type: Sync) {
 }
 
 task syncAppSource(type: org.springframework.boot.build.SyncAppSource) {
-	sourceDirectory = file("spring-boot-loader-tests-app")
-	destinationDirectory = file("${buildDir}/spring-boot-loader-tests-app")
+	sourceDirectory = file("spring-boot-loader-classic-tests-app")
+	destinationDirectory = file("${buildDir}/spring-boot-loader-classic-tests-app")
 }
 
 task buildApp(type: GradleBuild) {
 	dependsOn syncAppSource, syncMavenRepository
-	dir = "${buildDir}/spring-boot-loader-tests-app"
+	dir = "${buildDir}/spring-boot-loader-classic-tests-app"
 	startParameter.buildCacheEnabled = false
 	tasks  = ["build"]
 }

spring-boot-tests/spring-boot-integration-tests/spring-boot-loader-classic-tests/src/intTest/java/org/springframework/boot/loader/LoaderIntegrationTests.java

@@ -71,7 +71,7 @@ class LoaderIntegrationTests {
 	}
 
 	private File findApplication() {
-		String name = String.format("build/%1$s/build/libs/%1$s.jar", "spring-boot-loader-tests-app");
+		String name = String.format("build/%1$s/build/libs/%1$s.jar", "spring-boot-loader-classic-tests-app");
 		File jar = new File(name);
 		Assert.state(jar.isFile(), () -> "Could not find " + name + ". Have you built it?");
 		return jar;

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-ant/build.gradle

@@ -30,7 +30,7 @@ dependencies {
 	antDependencies "org.apache.ant:ant-launcher:1.10.7"
 	antDependencies "org.apache.ant:ant:1.10.7"
 
-	testRepository(project(path: ":spring-boot-project:spring-boot-tools:spring-boot-loader", configuration: "mavenRepository"))
+	testRepository(project(path: ":spring-boot-project:spring-boot-tools:spring-boot-loader-classic", configuration: "mavenRepository"))
 	testRepository(project(path: ":spring-boot-project:spring-boot-starters:spring-boot-starter", configuration: "mavenRepository"))
 
 	testImplementation(project(path: ":spring-boot-project:spring-boot-tools:spring-boot-loader-tools"))

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-ant/build.xml

@@ -65,7 +65,7 @@
 				<fileset dir="${lib.dir}/runtime" />
 				<globmapper from="*" to="BOOT-INF/lib/*"/>
 			</mappedresources>
-			<zipfileset src="${lib.dir}/loader/spring-boot-loader-jar-${ant-spring-boot.version}.jar" />
+			<zipfileset src="${lib.dir}/loader/spring-boot-loader-classic-jar-${ant-spring-boot.version}.jar" />
 			<manifest>
 				<attribute name="Main-Class" value="org.springframework.boot.loader.launch.JarLauncher" />
 				<attribute name="Start-Class" value="${start-class}" />

spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-ant/ivy.xml

@@ -7,6 +7,6 @@
 	</configurations>
 	<dependencies>
 		<dependency org="org.springframework.boot" name="spring-boot-starter" rev="${ant-spring-boot.version}" conf="compile" />
-		<dependency org="org.springframework.boot" name="spring-boot-loader" rev="${ant-spring-boot.version}" conf="loader->default" />
+		<dependency org="org.springframework.boot" name="spring-boot-loader-classic" rev="${ant-spring-boot.version}" conf="loader->default" />
 	</dependencies>
 </ivy-module>