Implement coroutineContext intrinsic

This intrinsic allows coroutine to access its context without suspention
and, furthermore, disabling tail-call optimization.
KT-17609: Fixed

compiler/testData/diagnostics/testsWithStdLib/coroutines/coroutineContext.kt

@@ -0,0 +1,43 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+import kotlin.coroutines.experimental.intrinsics.coroutineContext
+import kotlin.coroutines.experimental.CoroutineContext
+
+fun ordinal() {
+    <!ILLEGAL_SUSPEND_PROPERTY_ACCESS!>coroutineContext<!>
+}
+
+suspend fun named() {
+    coroutineContext
+}
+
+class A {
+    val coroutineContext = kotlin.coroutines.experimental.intrinsics.<!ILLEGAL_SUSPEND_PROPERTY_ACCESS!>coroutineContext<!>
+}
+
+class Controller {
+    fun ordinal() {
+        <!ILLEGAL_SUSPEND_PROPERTY_ACCESS!>coroutineContext<!>
+    }
+
+    suspend fun named() {
+        coroutineContext
+    }
+
+    suspend fun severalArgs(s: String, a: Any) {
+        coroutineContext
+    }
+}
+
+fun builder(c: () -> CoroutineContext) = {}
+fun builderSuspend(c: suspend () -> CoroutineContext) = {}
+
+fun builderSeveralArgs(c: (Int, Int, Int) -> CoroutineContext) = {}
+fun builderSuspendSeveralArgs(c: suspend (Int, Int, Int) -> CoroutineContext) = {}
+
+fun test() {
+    builder { <!ILLEGAL_SUSPEND_PROPERTY_ACCESS!>coroutineContext<!> }
+    builderSuspend { coroutineContext }
+    builderSeveralArgs {_, _,_ -> <!ILLEGAL_SUSPEND_PROPERTY_ACCESS!>coroutineContext<!> }
+    builderSuspendSeveralArgs {_, _,_ -> coroutineContext}
+}

compiler/testData/diagnostics/testsWithStdLib/coroutines/coroutineContext.txt

@@ -0,0 +1,27 @@
+package
+
+public fun builder(/*0*/ c: () -> kotlin.coroutines.experimental.CoroutineContext): () -> kotlin.Unit
+public fun builderSeveralArgs(/*0*/ c: (kotlin.Int, kotlin.Int, kotlin.Int) -> kotlin.coroutines.experimental.CoroutineContext): () -> kotlin.Unit
+public fun builderSuspend(/*0*/ c: suspend () -> kotlin.coroutines.experimental.CoroutineContext): () -> kotlin.Unit
+public fun builderSuspendSeveralArgs(/*0*/ c: suspend (kotlin.Int, kotlin.Int, kotlin.Int) -> kotlin.coroutines.experimental.CoroutineContext): () -> kotlin.Unit
+public suspend fun named(): kotlin.Unit
+public fun ordinal(): kotlin.Unit
+public fun test(): kotlin.Unit
+
+public final class A {
+    public constructor A()
+    public final val coroutineContext: kotlin.coroutines.experimental.CoroutineContext
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Controller {
+    public constructor Controller()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public final suspend fun named(): kotlin.Unit
+    public final fun ordinal(): kotlin.Unit
+    public final suspend fun severalArgs(/*0*/ s: kotlin.String, /*1*/ a: kotlin.Any): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}