Migrate all JDK 9 related tests to JDK 11

compiler/testData/codegen/bytecodeText/stringOperations/concatDynamicConstants.kt

@@ -1,5 +1,5 @@
 // KOTLIN_CONFIGURATION_FLAGS: STRING_CONCAT=indy-with-constants
-// JVM_TARGET: 9
+// JVM_TARGET: 11
 class A
 
 inline fun test(s: (String) -> Unit) {
@@ -12,4 +12,4 @@ fun box(a: String, b: String?) {
 
 // 1 INVOKEDYNAMIC makeConcatWithConstants
 // 0 append
-// 0 stringPlus
+// 0 stringPlus