[JS Legacy] Fix returning Char from suspend functions (KT-44221)

Mark translated expression with a proper type, like we do with
non-suspending calls, to coerce it later.

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

@@ -6853,6 +6853,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
             runTest("compiler/testData/codegen/box/coroutines/kt42554.kt");
         }
 
+        @TestMetadata("kt44221.kt")
+        public void testKt44221() throws Exception {
+            runTest("compiler/testData/codegen/box/coroutines/kt44221.kt");
+        }
+
         @TestMetadata("lastExpressionIsLoop.kt")
         public void testLastExpressionIsLoop() throws Exception {
             runTest("compiler/testData/codegen/box/coroutines/lastExpressionIsLoop.kt");