Build: replace usages of kotlin.build.useIR with kotlinBuildProperties.useIR

build.gradle.kts

@@ -194,7 +194,7 @@ if (!project.hasProperty("versions.kotlin-native")) {
 val intellijUltimateEnabled by extra(project.kotlinBuildProperties.intellijUltimateEnabled)
 val effectSystemEnabled by extra(project.getBooleanProperty("kotlin.compiler.effectSystemEnabled") ?: false)
 val newInferenceEnabled by extra(project.getBooleanProperty("kotlin.compiler.newInferenceEnabled") ?: false)
-val useJvmIrBackend by extra(project.getBooleanProperty("kotlin.build.useIR") ?: false)
+val useJvmIrBackend by extra(project.kotlinBuildProperties.useIR)
 
 val intellijSeparateSdks = project.getBooleanProperty("intellijSeparateSdks") ?: false
 

libraries/commonConfiguration.gradle

@@ -198,7 +198,7 @@ ext.configureLegacyPublishing = { Project project ->
 ext.configureJvmIrBackend = { Project project ->
     project.tasks.withType(KotlinCompile.class) { task ->
         task.kotlinOptions {
-            if (CommonUtilKt.getBooleanProperty(project, "kotlin.build.useIRForLibraries")) {
+            if (project.kotlinBuildProperties.useIRForLibraries) {
                 useIR = true
                 freeCompilerArgs += ["-Xir-binary-with-stable-abi"]
             } else {