Add EnumEntries to minimal-stdlib-for-tests

This change allows to revert adding `WITH_STDLIB` directive
to tests which happened at `a9343aeb`.

Co-authored-by: Alexander Udalov <Alexander.Udalov@jetbrains.com>

compiler/testData/codegen/box/enum/defaultCtor/constructorWithDefaultArguments.kt

@@ -1,4 +1,3 @@
-// WITH_STDLIB
 enum class Test(val str: String = "OK") {
     OK
 }

compiler/testData/codegen/box/enum/defaultCtor/constructorWithVararg.kt

@@ -1,4 +1,3 @@
-// WITH_STDLIB
 enum class Test(vararg xs: Int) {
     OK;
     val values = xs

compiler/testData/codegen/box/enum/defaultCtor/entryClassConstructorWithDefaultArguments.kt

@@ -1,4 +1,3 @@
-// WITH_STDLIB
 enum class Test(val str: String = "OK") {
     OK {
         fun foo() {}

compiler/testData/codegen/box/enum/defaultCtor/entryClassConstructorWithVarargs.kt

@@ -1,4 +1,3 @@
-// WITH_STDLIB
 // IGNORE_BACKEND: JS
 
 

compiler/testData/codegen/box/enum/defaultCtor/noPrimaryConstructor.kt

@@ -1,4 +1,3 @@
-// WITH_STDLIB
 // IGNORE_BACKEND_K2: JS_IR, NATIVE
 
 enum class Test {

compiler/testData/codegen/box/enum/defaultCtor/secondaryConstructorWithDefaultArguments.kt

@@ -1,4 +1,3 @@
-// WITH_STDLIB
 // IGNORE_BACKEND_K2: JS_IR, NATIVE
 enum class Test(val x: Int, val str: String) {
     OK;

compiler/testData/codegen/box/enum/defaultCtor/secondaryConstructorWithVararg.kt

@@ -1,4 +1,3 @@
-// WITH_STDLIB
 // IGNORE_BACKEND_K2: JS_IR, NATIVE
 enum class Test(val x: Int, val str: String) {
     OK;