Revert "Migrate integration_test plugin to Gradle Kotlin DSL (#142008)" (#143329)

This reverts https://github.com/flutter/flutter/pull/142008 because it broke the Flutter --> packages roller.

packages/integration_test/android/build.gradle.kts → packages/integration_test/android/build.gradle

@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-group = "dev.flutter.plugins.integration_test"
-version = "1.0-SNAPSHOT"
+group 'dev.flutter.plugins.integration_test'
+version '1.0-SNAPSHOT'
 
 buildscript {
     repositories {
@@ -12,14 +12,10 @@ buildscript {
     }
 
     dependencies {
-        classpath("com.android.tools.build:gradle:7.3.1")
+        classpath 'com.android.tools.build:gradle:7.3.1'
     }
 }
 
-plugins {
-    id("com.android.library")
-}
-
 rootProject.allprojects {
     repositories {
         google()
@@ -27,37 +23,42 @@ rootProject.allprojects {
     }
 }
 
+// project.getTasks().withType(JavaCompile){
+//     options.compilerArgs << "-Xlint:all" << "-Werror"
+// }
+
+apply plugin: 'com.android.library'
+
 android {
     // Conditional for compatibility with AGP <4.2.
-    if (project.findProject("android")?.hasProperty("namespace") == true) {
-        namespace = "dev.flutter.integration_test"
+    if (project.android.hasProperty("namespace")) {
+        namespace 'dev.flutter.integration_test'
     }
 
-    namespace = "dev.flutter.integration_test"
-    compileSdk = 34
+    compileSdk 34
 
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_1_8
-        targetCompatibility = JavaVersion.VERSION_1_8
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
     }
 
     defaultConfig {
-        minSdk = 21
-        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
-        consumerProguardFiles("lib-proguard-rules.txt")
+        minSdkVersion 21
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles 'lib-proguard-rules.txt'
     }
 
     dependencies {
         // TODO(egarciad): These dependencies should not be added to release builds.
         // https://github.com/flutter/flutter/issues/56591
-        testImplementation("junit:junit:4.12")
-        testImplementation("org.mockito:mockito-inline:5.0.0")
+        testImplementation 'junit:junit:4.12'
+        testImplementation 'org.mockito:mockito-inline:5.0.0'
 
         // https://developer.android.com/jetpack/androidx/releases/test/#1.2.0
-        api("androidx.test:runner:1.2.0")
-        api("androidx.test:rules:1.2.0")
-        api("androidx.test.espresso:espresso-core:3.2.0")
+        api 'androidx.test:runner:1.2.0'
+        api 'androidx.test:rules:1.2.0'
+        api 'androidx.test.espresso:espresso-core:3.2.0'
 
-        implementation("com.google.guava:guava:28.1-android")
+        implementation 'com.google.guava:guava:28.1-android'
     }
 }

packages/integration_test/android/settings.gradle.kts → packages/integration_test/android/settings.gradle

@@ -2,4 +2,4 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-rootProject.name = "integrationTest"
+rootProject.name = 'integrationTest'