[Build] Setup useFirForLibraries flag

libraries/kotlin.test/junit/build.gradle

@@ -44,6 +44,8 @@ compileTestKotlin {
     ]
 }
 
+configureFrontendIr(project)
+
 if (includeJava9) {
     LibrariesCommon.configureJava9Compilation(project, 'kotlin.test.junit')
 }

libraries/kotlin.test/junit5/build.gradle

@@ -43,6 +43,8 @@ compileTestKotlin {
     ]
 }
 
+configureFrontendIr(project)
+
 if (includeJava9) {
     LibrariesCommon.configureJava9Compilation(project, 'kotlin.test.junit5')
 }

libraries/kotlin.test/jvm/build.gradle

@@ -57,6 +57,8 @@ compileTestKotlin {
     ]
 }
 
+configureFrontendIr(project)
+
 if (includeJava9) {
     LibrariesCommon.configureJava9Compilation(project, 'kotlin.test')
 }

libraries/kotlin.test/testng/build.gradle

@@ -47,6 +47,8 @@ compileTestKotlin {
     ]
 }
 
+configureFrontendIr(project)
+
 if (includeJava9) {
     LibrariesCommon.configureJava9Compilation(project, 'kotlin.test.testng')
 }