[PSI2IR] Check how contextual functional type works with IR

compiler/testData/codegen/box/extensionFunctions/contextReceivers/contextualFunctionConversion.kt

@@ -0,0 +1,12 @@
+// !LANGUAGE: +ContextReceivers
+// TARGET_BACKEND: JVM_IR
+// IGNORE_BACKEND_FIR: JVM_IR
+
+fun withContext(f: context(String) () -> String) = f("OK")
+
+fun callWithContext(f: (String) -> String) = withContext(f)
+
+fun box(): String {
+    return callWithContext { s -> s }
+}
+