Properly process nested try and loop blocks

KT-3894: Loops and finally: finally block executed twice when break and return exists in try/finally block
KT-3874: Compilation error on try catch block contains break and continue
KT-3869: Loops and finally: outer finally block not run

 #KT-3869 Fixed
 #KT-3894 Fixed
 #KT-3874 Fixed

compiler/testData/codegen/box/finally/finallyAndFinally.kt

@@ -0,0 +1,39 @@
+class MyString {
+    var s = ""
+    fun plus(x : String) : MyString {
+        s += x
+        return this
+    }
+
+    fun toString(): String {
+        return s
+    }
+}
+
+
+fun test1() : MyString {
+    var r = MyString()
+    try {
+        r + "Try1"
+
+        try {
+            r + "Try2"
+            if (true)
+                return r
+        } finally {
+            r + "Finally2"
+            if (true) {
+                return r
+            }
+        }
+
+        return r
+    } finally {
+        r + "Finally1"
+    }
+}
+
+
+fun box(): String {
+  return if (test1().toString() == "Try1Try2Finally2Finally1") "OK" else "fail: ${test1()}"
+}

compiler/testData/codegen/box/finally/kt3874.kt

@@ -0,0 +1,35 @@
+fun test1(): String {
+    var r = ""
+    for (i in 1..2)  {
+        try {
+            r += "O"
+            continue
+        } finally {
+            r += "K"
+            break
+        }
+    }
+    return r
+}
+
+fun test2(): String {
+    var r = ""
+    for (i in 1..2)  {
+        try {
+            r += "O"
+            break
+        } finally {
+            r += "K"
+            continue
+        }
+    }
+    return r
+}
+
+fun box(): String {
+  if (test1() != "OK") return "fail1: ${test1()}"
+
+  if (test2() != "OKOK") return "fail2: ${test2()}"
+
+  return "OK"
+}

compiler/testData/codegen/box/finally/kt3894.kt

@@ -0,0 +1,36 @@
+class MyString {
+    var s = ""
+    fun plus(x : String) : MyString {
+        s += x
+        return this
+    }
+
+    fun toString(): String {
+        return s
+    }
+}
+
+fun test1() : MyString {
+    var r = MyString()
+    while (true) {
+      try {
+          r + "Try"
+
+          if (true) {
+              r + "Break"
+              break
+          }
+
+      } finally {
+          return r + "Finally"
+      }
+    }
+}
+
+
+
+fun box(): String {
+    if (test1().toString() != "TryBreakFinally") return "fail1: ${test1().toString()}"
+
+    return "OK"
+}

compiler/testData/codegen/box/finally/loopAndFinally.kt

@@ -0,0 +1,69 @@
+//KT-3869 Loops and finally: outer finally block not run
+
+class MyString {
+    var s = ""
+    fun plus(x : String) : MyString {
+        s += x
+        return this
+    }
+
+    fun toString(): String {
+        return s
+    }
+}
+
+fun test1() : MyString {
+    var r = MyString()
+    try {
+        r + "Try"
+
+        while(r.toString() != "") {
+            return r + "Loop"
+        }
+
+        return r + "Fail"
+    } finally {
+        r + "Finally"
+    }
+}
+
+fun test2() : MyString {
+    var r = MyString()
+    try {
+        r + "Try"
+
+        do {
+            if (r.toString() != "") {
+                return r + "Loop"
+            }
+        } while (r.toString() != "")
+
+        return r + "Fail"
+    } finally {
+        r + "Finally"
+    }
+}
+
+fun test3() : MyString {
+    var r = MyString()
+    try {
+        r + "Try"
+
+        for(i in 1..2) {
+            r + "Loop"
+            return r
+        }
+
+        return r + "Fail"
+    } finally {
+        r + "Finally"
+    }
+}
+
+fun box(): String {
+    if (test1().toString() != "TryLoopFinally") return "fail1: ${test1()}"
+    if (test2().toString() != "TryLoopFinally") return "fail2: ${test2()}"
+    if (test3().toString() != "TryLoopFinally") return "fail3: ${test3()}"
+
+    return "OK"
+}

compiler/testData/codegen/box/finally/tryLoopTry.kt

@@ -0,0 +1,36 @@
+//test for appropriate
+
+class MyString {
+    var s = ""
+    fun plus(x : String) : MyString {
+        s += x
+        return this
+    }
+
+    fun toString(): String {
+        return s
+    }
+}
+
+
+fun test1() : MyString {
+    var r = MyString()
+    try {
+        r + "Try1"
+        for(i in 1..1) {
+            try {
+                r + "Try2"
+            } finally {
+                return r + "Finally2"
+            }
+        }
+
+    } finally {
+        r + "Finally1"
+    }
+    return r  + "Fail"
+}
+
+fun box(): String {
+  return if (test1().toString() == "Try1Try2Finally2Finally1") "OK" else "fail: ${test1()}"
+}