JVM_IR: unwrap suspend views when generating SAM wrappers

If the super class is in a file that has already been lowered, the base
method has an extra continuation parameter which breaks things.

Also, SAM wrappers around functional objects are tail-call and do not
need continuations ever, so don't even try.

^KT-50950 Fixed

compiler/tests-gen/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java

@@ -8804,6 +8804,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
                     runTest("compiler/testData/codegen/box/coroutines/featureIntersection/funInterface/kt49294.kt");
                 }
 
+                @TestMetadata("kt50950.kt")
+                public void ignoreKt50950() throws Exception {
+                    runTest("compiler/testData/codegen/box/coroutines/featureIntersection/funInterface/kt50950.kt");
+                }
+
                 private void runTest(String testDataFilePath) throws Exception {
                     KotlinTestUtils.runTest(this::doTest, TargetBackend.JVM, testDataFilePath);
                 }