FIR2IR: generate type arguments in delegation calls

compiler/testData/ir/irText/classes/delegatedGenericImplementation.fir.kt.txt

@@ -17,20 +17,20 @@ class Test1<E : Any?> : IBase<E> {
   }
 
   override fun <B : Any?> foo(a: E, b: B) {
-    <this>.#<$$delegate_0>.foo</* null */>(a = a, b = b)
+    <this>.#<$$delegate_0>.foo<B>(a = a, b = b)
   }
 
   override val <C : Any?> C.id: Map<E, C>?
     override get(): Map<E, C>? {
-      return (<this>.#<$$delegate_0>, <this>).<get-id></* null */>()
+      return (<this>.#<$$delegate_0>, <this>).<get-id><C>()
     }
 
   override var <D : Any?> List<D>.x: D?
     override get(): D? {
-      return (<this>.#<$$delegate_0>, <this>).<get-x></* null */>()
+      return (<this>.#<$$delegate_0>, <this>).<get-x><D>()
     }
     override set(<set-?>: D?) {
-      (<this>.#<$$delegate_0>, <this>).<set-x></* null */>(<set-?> = <set-?>)
+      (<this>.#<$$delegate_0>, <this>).<set-x><D>(<set-?> = <set-?>)
     }
 
   local /* final field */ val <$$delegate_0>: IBase<E> = i
@@ -45,20 +45,20 @@ class Test2 : IBase<String> {
   }
 
   override fun <B : Any?> foo(a: String, b: B) {
-    <this>.#<$$delegate_0>.foo</* null */>(a = a, b = b)
+    <this>.#<$$delegate_0>.foo<B>(a = a, b = b)
   }
 
   override val <C : Any?> C.id: Map<String, C>?
     override get(): Map<String, C>? {
-      return (<this>.#<$$delegate_0>, <this>).<get-id></* null */>()
+      return (<this>.#<$$delegate_0>, <this>).<get-id><C>()
     }
 
   override var <D : Any?> List<D>.x: D?
     override get(): D? {
-      return (<this>.#<$$delegate_0>, <this>).<get-x></* null */>()
+      return (<this>.#<$$delegate_0>, <this>).<get-x><D>()
     }
     override set(<set-?>: D?) {
-      (<this>.#<$$delegate_0>, <this>).<set-x></* null */>(<set-?> = <set-?>)
+      (<this>.#<$$delegate_0>, <this>).<set-x><D>(<set-?> = <set-?>)
     }
 
   local /* final field */ val <$$delegate_0>: IBase<String> = j