Wizard: do not update path & artifactId value for invalid project name

idea/idea-new-project-wizard/src/org/jetbrains/kotlin/tools/projectWizard/wizard/ui/firstStep/FirstWizardStepComponent.kt

@@ -78,8 +78,11 @@ class ProjectSettingsComponent(ideWizard: IdeWizard) : DynamicComponent(ideWizar
         super.onValueUpdated(reference)
         when (reference?.path) {
             StructurePlugin::name.path -> {
-                tryUpdateLocationByProjectName()
-                tryArtifactIdByProjectName()
+                val isNameValid = read { StructurePlugin::name.reference.validate().isOk }
+                if (isNameValid) {
+                    tryUpdateLocationByProjectName()
+                    tryArtifactIdByProjectName()
+                }
             }
             StructurePlugin::artifactId.path -> {
                 artifactIdWasUpdatedByHand = true

libraries/tools/new-project-wizard/src/org/jetbrains/kotlin/tools/projectWizard/core/Context.kt

@@ -192,6 +192,9 @@ class Context private constructor(
         val <V : Any, T : SettingType<V>> SettingReference<V, T>.setting: Setting<V, T>
             get() = with(this) { getSetting() }
 
+        fun <V : Any, T : SettingType<V>> SettingReference<V, T>.validate() =
+            setting.validator.validate(this@Reader, settingValue)
+
         inline operator fun <T> invoke(reader: Reader.() -> T): T = reader()
     }