Merge pull request #1840 from liutikas/warniningsproperty

Remove Gradle Isolated Project violation

build-logic/convention/src/main/kotlin/com/google/samples/apps/nowinandroid/KotlinAndroid.kt

@@ -23,7 +23,6 @@ import org.gradle.api.plugins.JavaPluginExtension
 import org.gradle.kotlin.dsl.assign
 import org.gradle.kotlin.dsl.configure
 import org.gradle.kotlin.dsl.dependencies
-import org.gradle.kotlin.dsl.provideDelegate
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 import org.jetbrains.kotlin.gradle.dsl.KotlinAndroidProjectExtension
 import org.jetbrains.kotlin.gradle.dsl.KotlinBaseExtension
@@ -78,14 +77,16 @@ internal fun Project.configureKotlinJvm() {
 private inline fun <reified T : KotlinBaseExtension> Project.configureKotlin() = configure<T> {
     // Treat all Kotlin warnings as errors (disabled by default)
     // Override by setting warningsAsErrors=true in your ~/.gradle/gradle.properties
-    val warningsAsErrors: String? by project
+    val warningsAsErrors = providers.gradleProperty("warningsAsErrors").map {
+        it.toBoolean()
+    }.orElse(false)
     when (this) {
         is KotlinAndroidProjectExtension -> compilerOptions
         is KotlinJvmProjectExtension -> compilerOptions
         else -> TODO("Unsupported project extension $this ${T::class}")
     }.apply {
         jvmTarget = JvmTarget.JVM_11
-        allWarningsAsErrors = warningsAsErrors.toBoolean()
+        allWarningsAsErrors = warningsAsErrors
         freeCompilerArgs.add(
             // Enable experimental coroutines APIs, including Flow
             "-opt-in=kotlinx.coroutines.ExperimentalCoroutinesApi",