Replace disableSandbox with useSandbox in UtSettings (#857)

Although `disableSandbox` is a descriptive name, the inverted logic
makes it harder to use and does not match the naming of other settings.

This commit replaces `disableSandbox` with `useSandbox` and
correspondingly modifies necessary checks.

Author: dtim

utbot-framework-api/src/main/kotlin/org/utbot/framework/UtSettings.kt

@@ -374,10 +374,15 @@ object UtSettings : AbstractSettings(
     var ignoreStaticsFromTrustedLibraries by getBooleanProperty(true)
 
     /**
-     * Disable sandbox in the concrete executor. All unsafe/dangerous calls will be permitted.
+     * Use the sandbox in the concrete executor.
+     *
+     * If true (default), the sandbox will prevent potentially dangerous calls, e.g., file access, reading
+     * or modifying the environment, calls to `Unsafe` methods etc.
+     *
+     * If false, all these operations will be enabled and may lead to data loss during code analysis
+     * and test generation.
      */
-    var disableSandbox by getBooleanProperty(false)
-
+    var useSandbox by getBooleanProperty(true)
 }
 
 /**

utbot-framework-api/src/main/kotlin/org/utbot/testcheckers/SettingsModificators.kt

@@ -113,11 +113,11 @@ inline fun <reified T> withoutConcrete(block: () -> T): T {
  * Run [block] with disabled sandbox in the concrete executor
  */
 inline fun <reified T> withoutSandbox(block: () -> T): T {
-    val prev = UtSettings.disableSandbox
-    UtSettings.disableSandbox = true
+    val prev = UtSettings.useSandbox
+    UtSettings.useSandbox = false
     try {
         return block()
     } finally {
-        UtSettings.disableSandbox = prev
+        UtSettings.useSandbox = prev
     }
 }

utbot-instrumentation/src/main/kotlin/org/utbot/instrumentation/process/ChildProcessRunner.kt

@@ -51,7 +51,7 @@ class ChildProcessRunner {
         val directory = WorkingDirService.provide().toFile()
         val commandsWithOptions = buildList {
             addAll(cmds)
-            if (UtSettings.disableSandbox) {
+            if (!UtSettings.useSandbox) {
                 add(DISABLE_SANDBOX_OPTION)
             }
             add(portArgument)