Minor. Rename property to avoid regression like KTIJ-24147

P.s. seems like the whole concept of the KlibIrVersion is not
used currently, i.e. we always write 1.0.0 and never read it
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/KlibIrVersion.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/KlibIrVersion.kt
index a826f13..eb0dbe4 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/KlibIrVersion.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/KlibIrVersion.kt
@@ -23,7 +23,7 @@
     return KlibIrVersion(values[0], values[1], values[2])
 }
 
-val KotlinLibrary.metadataVersion: KlibIrVersion
+val KotlinLibrary.klibIrVersion: KlibIrVersion
     get() {
         val versionString = manifestProperties.getProperty(KLIB_PROPERTY_IR_VERSION)
         val versionIntArray = BinaryVersion.parseVersionArray(versionString)