[minor] fix warnings in the script compiler and tests

plugins/scripting/scripting-compiler/build.gradle.kts

@@ -45,8 +45,6 @@ sourceSets {
 
 tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinCompile<*>> {
     kotlinOptions {
-        languageVersion = "1.3"
-        apiVersion = "1.3"
         freeCompilerArgs = freeCompilerArgs - "-progressive" + "-Xskip-metadata-version-check"
     }
 }

plugins/scripting/scripting-compiler/src/org/jetbrains/kotlin/scripting/compiler/plugin/repl/ReplFromTerminal.kt

@@ -111,6 +111,7 @@ class ReplFromTerminal(
             is ReplEvalResult.Error.Runtime -> writer.outputRuntimeError(evalResult.message)
             is ReplEvalResult.Error.CompileTime -> writer.outputRuntimeError(evalResult.message)
             is ReplEvalResult.Incomplete -> writer.notifyIncomplete()
+            is ReplEvalResult.HistoryMismatch -> {} // assuming handled elsewhere
         }
         return evalResult
     }

plugins/scripting/scripting-compiler/tests/org/jetbrains/kotlin/scripting/compiler/test/CompileTimeFibonacciTest.kt

@@ -157,7 +157,7 @@ object CompileTimeFibonacciConfiguration : ScriptCompilationConfiguration(
                             )
                     }
                     ?.valueOr { return@onAnnotations it }
-                    ?.max() ?: return@onAnnotations context.compilationConfiguration.asSuccess()
+                    ?.maxOrNull() ?: return@onAnnotations context.compilationConfiguration.asSuccess()
 
                 val sourceCode = fibUntil(maxFibonacciNumber)
                     .mapIndexed { index, number -> "val FIB_${index + 1} = $number" }