Remove LANGUAGE_VERSION from codegen tests on coroutines

Use `// !LANGUAGE: -ReleaseCoroutines` instead in tests which require
old (1.2) coroutines, and nothing in tests which require new coroutines
because master is already 1.3. Also remove superfluous API_VERSION and
other directives which have no effect anymore. Do not include runtime
automatically with `WITH_COROUTINES`/`COMMON_COROUTINES_TEST` in box
tests; require `WITH_RUNTIME` for that (majority of tests already had it
anyway), but remove it from bytecode text tests where runtime is always
added automatically. Fix the coroutine package selection code in
KotlinTestUtils and update the bunch files correspondingly.

Disable tests in `box/coroutines/noStdLib` on JVM: despite the name,
these tests were launched with stdlib because of the code in
CodegenTestCase, and they do not work without it because at least
CoroutineUtil.kt requires stdlib to compile correctly

compiler/testData/codegen/bytecodeText/constCoroutine.kt

@@ -1,10 +1,12 @@
-// LANGUAGE_VERSION: 1.2
+// !LANGUAGE: -ReleaseCoroutines
 // WITH_RUNTIME
 // WITH_COROUTINES
-import helpers.*
 // TREAT_AS_ONE_FILE
+
+import helpers.*
 import kotlin.coroutines.experimental.*
 import kotlin.coroutines.experimental.intrinsics.*
+
 suspend fun suspendHere() = ""
 
 fun builder(c: suspend () -> Unit) {