Move codegen tests on old language versions under oldLanguageVersions/

This directory is skipped in JVM IR test generator, so they won't show
up as failed anymore.

Note that only failing tests are moved to oldLanguageVersions/. Tests
which already pass are still being run. It may be useful not to break
them in case we _do_ need to support some pre-1.3 language feature
switches in JVM IR.

compiler/testData/codegen/bytecodeText/oldLanguageVersions/constProperty/accessorsForPrivateConstants.kt

@@ -0,0 +1,22 @@
+// !LANGUAGE: -InlineConstVals
+// IGNORE_BACKEND: JVM_IR
+// FILE: Foo.kt
+
+private const val OUTER_PRIVATE = 20
+
+class Foo {
+    companion object {
+        private const val LOCAL_PRIVATE = 20
+    }
+
+    fun foo() {
+        // Access to the property use getstatic on the backed field
+        LOCAL_PRIVATE
+        // Access to the property requires an invokestatic
+        OUTER_PRIVATE
+    }
+}
+
+// 1 INVOKESTATIC
+// 1 PUTSTATIC
+// 2 GETSTATIC