Fix generic signature for KSuspendFunction types in bytecode

#KT-27560 Fixed

compiler/testData/writeSignature/callableReference/suspendFunctionReference.kt

@@ -0,0 +1,39 @@
+interface I
+
+abstract class AbstractTest {
+    abstract fun normal(): suspend (String) -> Unit
+
+    abstract fun extension(): suspend Double.() -> Double
+
+    abstract fun bigArity(): suspend (I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I) -> Unit
+}
+
+class Test : AbstractTest() {
+    override fun normal() = ::suspendNormal
+
+    override fun extension() = Double::suspendExtension
+
+    override fun bigArity() = this::suspendBigArity
+
+    private suspend fun suspendNormal(s: String) {}
+
+    private suspend fun suspendBigArity(
+        p01: I, p02: I, p03: I, p04: I, p05: I, p06: I, p07: I, p08: I, p09: I, p10: I,
+        p11: I, p12: I, p13: I, p14: I, p15: I, p16: I, p17: I, p18: I, p19: I, p20: I,
+        p21: I, p22: I, p23: I, p24: I, p25: I, p26: I, p27: I, p28: I, p29: I, p30: I
+    ) {}
+}
+
+private suspend fun Double.suspendExtension(): Double = this
+
+// method: Test::normal
+// jvm signature:     ()Lkotlin/reflect/KFunction;
+// generic signature: ()Lkotlin/reflect/KFunction<Lkotlin/Unit;>;
+
+// method: Test::extension
+// jvm signature:     ()Lkotlin/reflect/KFunction;
+// generic signature: ()Lkotlin/reflect/KFunction<Ljava/lang/Double;>;
+
+// method: Test::bigArity
+// jvm signature:     ()Lkotlin/reflect/KFunction;
+// generic signature: ()Lkotlin/reflect/KFunction<Lkotlin/Unit;>;