JS: coroutines: fix handling of throw statement inside try/catch block when controller has handleSuspend function

js/js.inliner/src/org/jetbrains/kotlin/js/coroutine/CoroutineBodyTransformer.kt

@@ -73,7 +73,7 @@ class CoroutineBodyTransformer(
 
         val thenEntryBlock = CoroutineBlock()
         currentBlock = thenEntryBlock
-        x.thenStatement?.accept(this)
+        x.thenStatement.accept(this)
         val thenExitBlock = currentBlock
 
         val elseEntryBlock = CoroutineBlock()
@@ -322,8 +322,7 @@ class CoroutineBodyTransformer(
     }
 
     override fun visitThrow(x: JsThrow) {
-        if (throwFunctionName != null) {
-            // TODO: what if we catch exception in coroutine?
+        if (throwFunctionName != null && tryStack.isEmpty()) {
             val methodRef = JsNameRef(throwFunctionName, JsNameRef(context.controllerFieldName, JsLiteral.THIS))
             val invocation = JsInvocation(methodRef, x.expression).apply {
                 source = x.source

js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java

@@ -5591,6 +5591,12 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
                 doTest(fileName);
             }
 
+            @TestMetadata("throwInTryWithHandleResult.kt")
+            public void testThrowInTryWithHandleResult() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/coroutines/controlFlow/throwInTryWithHandleResult.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("whileStatement.kt")
             public void testWhileStatement() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/coroutines/controlFlow/whileStatement.kt");