JS backend: support for while/do while with complex conditions

js/js.translator/testData/expression/while/cases/whileWithComplexConditionAndContinue.kt

@@ -0,0 +1,41 @@
+package foo
+
+var global: String = ""
+
+fun box(): String {
+
+    var i = 0
+
+    i = 0
+    global = ""
+    while(try { global += "A"; i } finally {} < 10) {
+        if (i<3) {i++; continue}
+        break
+    }
+    assertEquals("AAAA", global)
+    assertEquals(3, i)
+
+    i = 0
+    global = ""
+    @labelA while(try { global += "A"; i } finally {} < 10) {
+        if (i<3) {i++; continue@labelA}
+        break
+    }
+    assertEquals("AAAA", global)
+    assertEquals(3, i)
+
+    i = 0
+    var j = 0
+    global = ""
+    @outer while(try { global += "A"; i++ } finally {}  < 3) {
+        j = 0
+        while( try {global += "B"; j++ } finally {} < 2) {
+            if (j==1) continue@outer
+        }
+    }
+    assertEquals("ABABABA", global)
+    assertEquals(4, i)
+    assertEquals(1, j)
+
+    return "OK"
+}