[Test] Fix various tests according to switching to kotlin 1.5

compiler/testData/integration/ant/jvm/languageVersion/build.log.expected

@@ -3,6 +3,7 @@ Buildfile: [TestData]/build.xml
 
 build:
   [kotlinc] Compiling [[TestData]/main.kt] => [[Temp]/hello.jar]
+  [kotlinc] warning: language version 1.3 is deprecated and its support will be removed in a future version of Kotlin
   [kotlinc] [TestData]/main.kt:4:21: error: 'break' and 'continue' are not allowed in 'when' statements. Consider using labels to continue/break from the outer loop
   [kotlinc]             true -> break
   [kotlinc]                     ^

compiler/testData/integration/ant/jvm/verbose/build.log.expected

@@ -4,7 +4,7 @@ Buildfile: [TestData]/build.xml
 build:
   [kotlinc] Compiling [[TestData]/hello.kt] => [[Temp]/hello.jar]
   [kotlinc] logging: using Kotlin home directory [KotlinProjectHome]/dist/kotlinc
-  [kotlinc] logging: using old JVM backend
+  [kotlinc] logging: using JVM IR backend
   [kotlinc] logging: configuring the compilation environment
   [kotlinc] logging: configure scripting: Added template org.jetbrains.kotlin.mainKts.MainKtsScript from [[CompilerLib]/kotlin-main-kts.jar, [CompilerLib]/kotlin-reflect.jar, [CompilerLib]/kotlin-script-runtime.jar, [CompilerLib]/kotlin-stdlib.jar]
 

compiler/tests/org/jetbrains/kotlin/cli/CustomCliTest.kt

@@ -16,7 +16,7 @@ private const val EMPTY_MAIN_FUN = "fun main() {}"
 
 class CustomCliTest : TestCaseWithTmpdir() {
     fun testArgfileWithNonTrivialWhitespaces() {
-        val text = "-include-runtime\r\n\t\t-language-version\n\t1.2\r\n-version"
+        val text = "-include-runtime\r\n\t\t-language-version\n\t1.5\r\n-version"
         val argfile = File(tmpdir, "argfile").apply { writeText(text, Charsets.UTF_8) }
         CompilerTestUtil.executeCompilerAssertSuccessful(K2JVMCompiler(), listOf("@" + argfile.absolutePath))
     }