JVM IR: Copy type parameters from outer class to suspendImpl

Previously we copied only type parameters from containing class, but we
need to do that for outer classes as well.
 #KT-55125

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

@@ -0,0 +1,22 @@
+// TARGET_BACKEND: JVM_IR
+// WITH_STDLIB
+// FULL_JDK
+
+class Outer<U> {
+    inner abstract class AbstractPersistence<T> {
+        open suspend fun fetch(identifier: U): T? = null
+    }
+
+    fun foo(): String = AbstractPersistence::class.java.declaredMethods
+        .single { it.name.contains("\$suspendImpl") }
+        .toGenericString()
+}
+
+fun box(): String {
+    val genericString = Outer<Unit>().foo()
+    if (!genericString.startsWith("static <T,U>")) {
+        return genericString
+    }
+
+    return "OK"
+}