JVM_IR: bug fix in classFileContainsMethod

The old test sequence failed for toplevel functions because of file
class wrappers, so that the second branch was never invoked.

compiler/backend/src/org/jetbrains/kotlin/codegen/inline/InlineCodegen.kt

@@ -577,7 +577,8 @@ abstract class InlineCodegen<out T : BaseExpressionCodegen>(
                         doCreateMethodNodeFromCompiled(directMember, state, jvmSignature.asmMethod)
                     else
                         null
-                result ?: throw IllegalStateException("Couldn't obtain compiled function body for $functionDescriptor")
+                result ?:
+                throw IllegalStateException("Couldn't obtain compiled function body for $functionDescriptor")
             }
 
             return SMAPAndMethodNode(cloneMethodNode(resultInCache.node), resultInCache.classSMAP)