Annotate explicitly stdlib tests, which must be excluded from JS stdlib tests with @JvmVersion, do not use file naming convention, use preprocessor instead.

libraries/stdlib/test/text/CharJVMTest.kt

@@ -1,3 +1,4 @@
+@file:kotlin.jvm.JvmVersion
 package test.text
 
 import kotlin.test.*

libraries/stdlib/test/text/RegexJVMTest.kt

@@ -1,3 +1,4 @@
+@file:kotlin.jvm.JvmVersion
 package test.text
 
 import kotlin.test.*

libraries/stdlib/test/text/StringBuilderJVMTest.kt

@@ -1,6 +1,6 @@
+@file:kotlin.jvm.JvmVersion
 package test.text
 
-import kotlin.*
 import kotlin.test.*
 import org.junit.Test as test
 

libraries/stdlib/test/text/StringJVMTest.kt

@@ -1,3 +1,4 @@
+@file:kotlin.jvm.JvmVersion
 package test.text
 
 import test.collections.assertArrayNotSameButEquals