[Tests] Add irText tests

compiler/testData/ir/irText/declarations/contextReceivers/function.kt

@@ -0,0 +1,17 @@
+// !LANGUAGE: +ContextReceivers
+// IGNORE_BACKEND_FIR: JVM_IR
+
+class C {
+    val c = 42
+}
+
+context(C)
+fun foo() {
+    c
+}
+
+fun bar(c: C) {
+    with(c) {
+        foo()
+    }
+}