FIR: Use Any? expect type to the argument list of ==

^KT-47409 Related

compiler/fir/analysis-tests/testData/resolve/inference/equals.kt

@@ -0,0 +1,6 @@
+fun <T> materialize(): T = TODO()
+
+fun main() {
+    if ("" == materialize()) return // FE1.0: OK, type argument inferred to Any?
+    if (materialize() == "") return // FE1.0: Error, uninferred type argument for `T`
+}