KT-5248 Don't wrap variable if it is captured only in inlined closures

Remove non-escaping Ref's on bytecode postprocessing pass.

compiler/testData/codegen/box/closures/capturedVarsOptimization/capturedInCrossinline.kt

@@ -0,0 +1,9 @@
+inline fun runCrossInline(crossinline f: () -> Unit) {
+    f()
+}
+
+fun box(): String {
+    var x = ""
+    runCrossInline { x = "OK" }
+    return x
+}

compiler/testData/codegen/box/closures/capturedVarsOptimization/capturedInInlineOnlyAssign.kt

@@ -0,0 +1,7 @@
+// WITH_RUNTIME
+
+fun box(): String {
+    var x = ""
+    run { x = "OK" }
+    return x
+}

compiler/testData/codegen/box/closures/capturedVarsOptimization/capturedInInlineOnlyCAO.kt

@@ -0,0 +1,10 @@
+// WITH_RUNTIME
+
+fun box(): String {
+    var x = ""
+    run {
+        x += "O"
+        x += "K"
+    }
+    return x
+}

compiler/testData/codegen/box/closures/capturedVarsOptimization/capturedInInlineOnlyIncrDecr.kt

@@ -0,0 +1,8 @@
+// WITH_RUNTIME
+
+fun box(): String {
+    var x = 0
+    run { x++ }
+    run { ++x }
+    return if (x == 2) "OK" else "Fail: $x"
+}

compiler/testData/codegen/box/closures/capturedVarsOptimization/capturedInInlineOnlyIndexedCAO.kt

@@ -0,0 +1,18 @@
+// WITH_RUNTIME
+
+class Host(var value: String) {
+    operator fun get(i: Int, j: Int, k: Int) = value
+
+    operator fun set(i: Int, j: Int, k: Int, newValue: String) {
+        value = newValue
+    }
+}
+
+fun box(): String {
+    var x = Host("")
+    run {
+        x[0, 0, 0] += "O"
+        x[0, 0, 0] += "K"
+    }
+    return x.value
+}

compiler/testData/codegen/box/closures/capturedVarsOptimization/capturedVarsOfSize2.kt

@@ -0,0 +1,26 @@
+// WITH_RUNTIME
+
+fun box(): String {
+    var xl = 0L     // Long, size 2
+    var xi = 0      // Int, size 1
+    var xd = 0.0    // Double, size 2
+
+    run {
+        xl++
+        xd += 1.0
+        xi++
+    }
+
+    run {
+        run {
+            xl++
+            xd += 1.0
+            xi++
+        }
+    }
+
+    if (xi != 2) return "fail: xi=$xi"
+    if (xl != 2L) return "fail: xl=$xl"
+    if (xd != 2.0) return "fail: xd=$xd"
+    return "OK"
+}

compiler/testData/codegen/box/closures/capturedVarsOptimization/sharedSlotsWithCapturedVars.kt

@@ -0,0 +1,19 @@
+// WITH_RUNTIME
+
+fun box(): String {
+    run {
+        run {
+            var x = 0
+            run { ++x }
+            if (x == 0) return "fail"
+        }
+
+        run {
+            var x = 0
+            run { x++ }
+            if (x == 0) return "fail"
+        }
+    }
+
+    return "OK"
+}

compiler/testData/codegen/box/closures/capturedVarsOptimization/withCoroutines.kt

@@ -0,0 +1,41 @@
+// WITH_RUNTIME
+// WITH_COROUTINES
+import kotlin.coroutines.experimental.*
+import kotlin.coroutines.experimental.intrinsics.*
+
+
+class Controller {
+    var result = ""
+
+    suspend fun <T> suspendWithResult(value: T): T = suspendCoroutineOrReturn { c ->
+        c.resume(value)
+        COROUTINE_SUSPENDED
+    }
+}
+
+fun builder(c: suspend Controller.() -> Unit): String {
+    val controller = Controller()
+    c.startCoroutine(controller, EmptyContinuation)
+    return controller.result
+}
+
+fun box(): String {
+    val value = builder {
+        var r = ""
+
+        for (x in listOf("O", "$", "K")) {
+            if (x == "$") continue
+            run {
+                r += suspendWithResult(x)
+            }
+        }
+        run {
+            r += "."
+        }
+        result = r
+    }
+
+    if (value != "OK.") return "fail: suspend in for body: $value"
+
+    return "OK"
+}