JVM IR: do not add suffix for accessors to top level functions

This only reproduced when compiling (technically incorrect) code in the
standard library, where private functions monitorEnter/monitorExit are
accessed from another file, and their names with suffixes are not
recognized as intrinsics which should be replaced by
monitorenter/monitorexit JVM bytecode instructions.

compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java

@@ -14275,6 +14275,11 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
             runTest("compiler/testData/codegen/box/intrinsics/longRangeWithExplicitDot.kt");
         }
 
+        @TestMetadata("monitorEnterMonitorExit.kt")
+        public void testMonitorEnterMonitorExit() throws Exception {
+            runTest("compiler/testData/codegen/box/intrinsics/monitorEnterMonitorExit.kt");
+        }
+
         @TestMetadata("nonShortCircuitAnd.kt")
         public void testNonShortCircuitAnd() throws Exception {
             runTest("compiler/testData/codegen/box/intrinsics/nonShortCircuitAnd.kt");