Move coroutines to kotlin.coroutines package: tests

Introduce COMMON_COROUTINES_TEST directive.
Every test with this directive is run twice: one time with
language version 1.2 and kotlin.coroutines.experimental package
and the other time with language version 1.3 and kotlin.coroutines
package. Each run is a separate method: with suffixes _1_2 and _1_3
respectively.
However, since codegen of release coroutines is not supported in JS
backend, we generate only one method: with suffix _1_2.
 #KT-23362

compiler/testData/codegen/boxInline/suspend/inlineSuspendOfCrossinlineOrdinary.kt

@@ -1,7 +1,8 @@
 // FILE: test.kt
+// COMMON_COROUTINES_TEST
 // WITH_RUNTIME
 
-import kotlin.coroutines.experimental.*
+import COROUTINES_PACKAGE.*
 
 // Block is allowed to be called inside the body of owner inline function
 // Block is allowed to be called from nested classes/lambdas (as common crossinlines)
@@ -43,8 +44,9 @@ fun builder(c: suspend () -> Unit) {
 }
 
 // FILE: box.kt
+// COMMON_COROUTINES_TEST
 
-import kotlin.coroutines.experimental.*
+import COROUTINES_PACKAGE.*
 
 fun box() : String {
     var res = "FAIL 1"