[FIR] KT-56769: Ensure @receiver: is only allowed on receivers

Note that there's no code that checks that
FirReceiverParameter's annotation's use-site target
is indeed `@receiver:`, because otherwise the
annotation wouldn't have made it into
the FirReceiverParameter.

In contrast, in K1 all such annotations are treated
as annotations on a KtTypeReference.

^KT-56769 Fixed

compiler/testData/diagnostics/tests/kt56769.fir.kt

@@ -0,0 +1,19 @@
+fun main(args: Array<<!WRONG_ANNOTATION_TARGET_WITH_USE_SITE_TARGET!>@receiver:Anno<!> String>) {}
+
+annotation class Anno
+
+fun Int.train(args: Array<<!WRONG_ANNOTATION_TARGET_WITH_USE_SITE_TARGET!>@receiver:Anno<!> String>) {}
+
+fun Int.plane(<!WRONG_ANNOTATION_TARGET_WITH_USE_SITE_TARGET!>@receiver:Anno<!> args: Array<String>) {}
+
+fun vein(args: Array<<!WRONG_ANNOTATION_TARGET!>@file:Anno<!> String>) {}
+
+fun rain(args: Array<<!WRONG_ANNOTATION_TARGET!>@Anno<!> String>) {}
+
+fun <!WRONG_ANNOTATION_TARGET!>@Anno<!> Int.strain() {}
+
+fun @receiver:Anno Int.drain() {}
+
+fun <!WRONG_ANNOTATION_TARGET!>@file:Anno<!> Int.brain() {}
+
+fun (<!WRONG_ANNOTATION_TARGET!>@Anno<!> Int).crane() {}