fixup! copy KotlinToolingVersion function to debug

diff --git a/compiler/build-tools/kotlin-build-tools-api-tests/build.gradle.kts b/compiler/build-tools/kotlin-build-tools-api-tests/build.gradle.kts
index 5e3030c..df06efb 100644
--- a/compiler/build-tools/kotlin-build-tools-api-tests/build.gradle.kts
+++ b/compiler/build-tools/kotlin-build-tools-api-tests/build.gradle.kts

@@ -33,11 +33,11 @@
     val baseVersionSplit = baseVersion.split(".")
 
     val majorVersion = baseVersionSplit[0].toIntOrNull()
-    val minorVersion = baseVersionSplit.getOrNull(1)?.toIntOrNull()
-
-    if (majorVersion == null || minorVersion == null) {
-        throw IllegalArgumentException("Invalid Kotlin version: $kotlinVersionString (Failed parsing major/minor version)")
-    }
+        ?: throw IllegalArgumentException("Invalid major version: ${baseVersionSplit[0]} from $baseVersion")
+    val minorVersion = baseVersionSplit.getOrNull(1)?.let {
+        it.toIntOrNull()
+            ?: throw IllegalArgumentException("Invalid minor version: $it from $baseVersion")
+    } ?: throw IllegalStateException("Minor version not found in $baseVersion")
 
     return KotlinToolingVersion(
         major = majorVersion,

diff --git a/libraries/tools/kotlin-tooling-core/src/main/kotlin/org/jetbrains/kotlin/tooling/core/KotlinToolingVersion.kt b/libraries/tools/kotlin-tooling-core/src/main/kotlin/org/jetbrains/kotlin/tooling/core/KotlinToolingVersion.kt
index 81d8d69..34c93ce 100644
--- a/libraries/tools/kotlin-tooling-core/src/main/kotlin/org/jetbrains/kotlin/tooling/core/KotlinToolingVersion.kt
+++ b/libraries/tools/kotlin-tooling-core/src/main/kotlin/org/jetbrains/kotlin/tooling/core/KotlinToolingVersion.kt

@@ -23,10 +23,6 @@
             ?: throw IllegalArgumentException("Invalid minor version: $it from $baseVersion")
     } ?: throw IllegalStateException("Minor version not found in $baseVersion")
 
-    if (majorVersion == null || minorVersion == null) {
-        throw IllegalArgumentException("Invalid Kotlin version: $kotlinVersionString (Failed parsing major/minor version)")
-    }
-
     return KotlinToolingVersion(
         major = majorVersion,
         minor = minorVersion,