KT-5248 Don't wrap variable if it is captured only in inlined closures

Remove non-escaping Ref's on bytecode postprocessing pass.

compiler/testData/codegen/box/closures/capturedVarsOptimization/capturedInInlineOnlyIndexedCAO.kt

@@ -0,0 +1,18 @@
+// WITH_RUNTIME
+
+class Host(var value: String) {
+    operator fun get(i: Int, j: Int, k: Int) = value
+
+    operator fun set(i: Int, j: Int, k: Int, newValue: String) {
+        value = newValue
+    }
+}
+
+fun box(): String {
+    var x = Host("")
+    run {
+        x[0, 0, 0] += "O"
+        x[0, 0, 0] += "K"
+    }
+    return x.value
+}