feat(gui): add auto complete for jadx scripts

jadx-plugins/jadx-script/jadx-script-ide/src/main/kotlin/complete.kt

@@ -0,0 +1,34 @@
+package jadx.plugins.script.ide
+
+import jadx.plugins.script.runner.ScriptEval
+import kotlinx.coroutines.runBlocking
+import org.jetbrains.kotlin.scripting.ide_services.compiler.KJvmReplCompilerWithIdeServices
+import kotlin.script.experimental.api.*
+import kotlin.script.experimental.host.toScriptSource
+import kotlin.script.experimental.jvm.util.toSourceCodePosition
+
+const val AUTO_COMPLETE_INSERT_STR = "ABCDEF" // defined at KJvmReplCompleter.INSERTED_STRING
+
+data class ScriptCompletionResult(
+	val completions: List<SourceCodeCompletionVariant>,
+	val reports: List<ScriptDiagnostic>
+)
+
+class JadxScriptAutoComplete(private val scriptName: String) {
+	private val replCompiler = KJvmReplCompilerWithIdeServices()
+	private val compileConf = ScriptEval().buildCompileConf()
+
+	fun complete(code: String, cursor: Int): ScriptCompletionResult {
+		val result = complete(code.toScriptSource(scriptName), cursor)
+		return ScriptCompletionResult(
+			completions = result.valueOrNull()?.toList() ?: listOf(),
+			reports = result.reports
+		)
+	}
+
+	private fun complete(code: SourceCode, cursor: Int): ResultWithDiagnostics<ReplCompletionResult> {
+		return runBlocking {
+			replCompiler.complete(code, cursor.toSourceCodePosition(code), compileConf)
+		}
+	}
+}