[JS IR BE] process empty loops correctly in BlockDecomposerLowering

js/js.translator/testData/box/expression/evaluationOrder/emptyLoopWithBreakContinueReturnInCondition.kt

@@ -0,0 +1,49 @@
+// EXPECTED_REACHABLE_NODES: 1236
+package foo
+
+fun whileReturn(): String {
+    var log = ""
+    var i = 0
+    while(if (i<2) { log += "A"; i++; true } else { return log + ":whileReturn:"});
+    return ":whileReturn:after:"
+}
+
+fun whileImmediateReturn(): String {
+    while(return ":whileImmediateReturn:") {
+    }
+    return ":whileImmediateReturn:after"
+}
+
+fun doWhileReturn(): String {
+    var log = ""
+    var i = 0
+    do while(if (i<2) { log += "A"; i++; true} else { return log + ":doWhileReturn:"})
+    return ":doWhileReturn:after:"
+}
+
+fun doWhileReturnFromCondition(): String {
+    do {
+    } while(return ":doWhileReturnFromCondition:")
+    return ":doWhileReturnFromCondition:after"
+}
+
+fun forReturn(b: Boolean): String {
+    for(i in (if (b) 1..2 else { return ":forReturn:"}));
+    return ":forReturn:after:"
+}
+
+fun box(): String {
+    assertEquals("AA:whileReturn:", whileReturn())
+
+    assertEquals(":whileImmediateReturn:", whileImmediateReturn())
+
+    assertEquals("AA:doWhileReturn:", doWhileReturn())
+
+    assertEquals(":doWhileReturnFromCondition:", doWhileReturnFromCondition())
+
+    assertEquals(":forReturn:after:", forReturn(true))
+
+    assertEquals(":forReturn:", forReturn(false))
+
+    return "OK"
+}