Wizard: make YamlParsingError to be exception error

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

@@ -1,10 +1,6 @@
 package org.jetbrains.kotlin.tools.projectWizard.wizard.core
 
-import org.jetbrains.kotlin.tools.projectWizard.core.Error
-import org.jetbrains.kotlin.tools.projectWizard.core.asString
+import org.jetbrains.kotlin.tools.projectWizard.core.ExceptionError
 import org.yaml.snakeyaml.parser.ParserException
 
-data class YamlParsingError(val exception: ParserException) : Error() {
-    override val message: String
-        get() = exception.asString()
-}
+data class YamlParsingError(override val exception: ParserException) : ExceptionError()

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

@@ -9,7 +9,14 @@ abstract class Error {
 abstract class ExceptionError : Error() {
     abstract val exception: Exception
     override val message: String
-        get() = exception.asString()
+        get() = exception::class.simpleName!!.removeSuffix("Exception").splitByWords() +
+                exception.message?.let { ": $it" }.orEmpty()
+
+    companion object {
+        private val wordRegex = "[A-Z][a-z0-9]+".toRegex()
+        private fun String.splitByWords() =
+            wordRegex.findAll(this).joinToString(separator = " ") { it.value }
+    }
 }
 
 data class IOError(override val exception: IOException) : ExceptionError()
@@ -79,11 +86,3 @@ data class ModuleNotFoundError(val path: String) : Error() {
 }
 
 
-fun Throwable.asString() =
-    this::class.simpleName!!.removeSuffix("Exception").splitByWords() + message?.let { ": $it" }.orEmpty()
-
-private val wordRegex = "[A-Z][a-z0-9]+".toRegex()
-private fun String.splitByWords() =
-    wordRegex.findAll(this).joinToString(separator = " ") { it.value }
-
-