Refactor script definitions loading

Make ScriptDefinitionProvider an interface
    and provide different implementation for cli and IDEA
Rework ide extension point to a simpler interface (ScriptDefinitionContributor)
Move template loading logic into a top level function
Allow script definitions to be reloaded in IDE

libraries/tools/kotlin-script-util/src/main/kotlin/org/jetbrains/kotlin/script/jsr223/KotlinJsr223JvmLocalScriptEngine.kt

@@ -23,7 +23,6 @@ import org.jetbrains.kotlin.cli.common.repl.*
 import org.jetbrains.kotlin.cli.jvm.config.addJvmClasspathRoots
 import org.jetbrains.kotlin.cli.jvm.repl.GenericReplCompiler
 import org.jetbrains.kotlin.config.*
-import org.jetbrains.kotlin.load.kotlin.JvmMetadataVersion
 import org.jetbrains.kotlin.script.KotlinScriptDefinition
 import org.jetbrains.kotlin.script.KotlinScriptDefinitionFromAnnotatedTemplate
 import org.jetbrains.kotlin.utils.PathUtil
@@ -64,7 +63,7 @@ class KotlinJsr223JvmLocalScriptEngine(
     private fun makeScriptDefinition(templateClasspath: List<File>, templateClassName: String): KotlinScriptDefinition {
         val classloader = URLClassLoader(templateClasspath.map { it.toURI().toURL() }.toTypedArray(), this.javaClass.classLoader)
         val cls = classloader.loadClass(templateClassName)
-        return KotlinScriptDefinitionFromAnnotatedTemplate(cls.kotlin, null, null, emptyMap())
+        return KotlinScriptDefinitionFromAnnotatedTemplate(cls.kotlin, emptyMap())
     }
 
     private fun makeCompilerConfiguration() = CompilerConfiguration().apply {

libraries/tools/kotlin-script-util/src/test/kotlin/org/jetbrains/kotlin/script/util/ScriptUtilIT.kt

@@ -115,7 +115,7 @@ done
             suppressOutput: Boolean = false
     ): Class<*>? =
             compileScriptImpl("src/test/resources/scripts/" + scriptFileName,
-                              KotlinScriptDefinitionFromAnnotatedTemplate(scriptTemplate, null, null, environment), suppressOutput)
+                              KotlinScriptDefinitionFromAnnotatedTemplate(scriptTemplate, environment), suppressOutput)
 
     private fun compileScriptImpl(
             scriptPath: String,