KT-46797 Generate generic signatures for suspendImpl

compiler/testData/codegen/box/coroutines/genericSignatureForSuspendImpl.kt

@@ -0,0 +1,37 @@
+// TARGET_BACKEND: JVM
+// FULL_JDK
+// WITH_STDLIB
+// WITH_COROUTINES
+
+package test
+
+import kotlin.coroutines.*
+import java.lang.reflect.*
+import kotlin.test.assertEquals
+
+open class MyClass {
+    open suspend fun <T> fooTypeParameter() = reifiedType<Foo<T>>()
+}
+
+class Foo<T>
+
+open class TypeBase<T>
+
+inline fun <reified T> reifiedType(): Type {
+    val base = object : TypeBase<T>() {}
+    val superType = base::class.java.genericSuperclass!!
+    return (superType as ParameterizedType).actualTypeArguments.first()!!
+}
+
+fun runBlocking(c: suspend () -> Unit) {
+    c.startCoroutine(Continuation(EmptyCoroutineContext){
+        it.getOrThrow()
+    })
+}
+
+fun box(): String {
+    runBlocking {
+        assertEquals("test.Foo<T>", MyClass().fooTypeParameter<String>().toString())
+    }
+    return "OK"
+}