Implement missing invoke resolution branch with context receivers

#KT-61937 fixed
Note: the current implementation only resolves for a single receiver
in each group. See KT-62712 and KT-62709 for the followup.

compiler/testData/diagnostics/tests/extensions/contextReceivers/lambdaReceiverFromContext.fir.kt

@@ -0,0 +1,13 @@
+// !LANGUAGE: +ContextReceivers
+
+class Ctx
+
+fun Ctx.foo() {}
+
+context(Ctx)
+class A {
+    fun bar(body: Ctx.() -> Unit) {
+        foo()
+        body()
+    }
+}