[FIR-TEST] Add new testdata generated after changes in previous commit

compiler/testData/diagnostics/tests/GenericFunctionIsLessSpecific.fir.kt

@@ -0,0 +1,10 @@
+// !CHECK_TYPE
+
+// A generic funciton is always less specific than a non-generic one
+fun <T> foo(t : T) : Unit {}
+fun foo(i : Int) : Int = 1
+
+fun test() {
+    checkSubtype<Int>(foo(1))
+    checkSubtype<Unit>(foo("s"))
+}