[Tests] Add irText tests

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

@@ -0,0 +1,17 @@
+// !LANGUAGE: +ContextReceivers
+// IGNORE_BACKEND_FIR: JVM_IR
+
+class Outer {
+    val x: Int = 1
+}
+
+context(Outer)
+class Inner(arg: Any) {
+    fun bar() = x
+}
+
+fun f(outer: Outer) {
+    with(outer) {
+        Inner(3)
+    }
+}