Remove kotlin.coroutine package from default imports.

compiler/testData/diagnostics/tests/coroutines/noDefaultCoroutineImports.kt

@@ -0,0 +1,8 @@
+// FILE: 1.kt
+
+fun test(<!UNUSED_PARAMETER!>c<!>: <!UNRESOLVED_REFERENCE!>Continuation<!><Unit>) {}
+
+// FILE: 2.kt
+import kotlin.coroutines.*
+
+fun test2(<!UNUSED_PARAMETER!>c<!>: Continuation<Unit>) {}

compiler/testData/diagnostics/tests/coroutines/noDefaultCoroutineImports.txt

@@ -0,0 +1,4 @@
+package
+
+public fun test(/*0*/ c: [ERROR : Continuation<Unit>]<kotlin.Unit>): kotlin.Unit
+public fun test2(/*0*/ c: kotlin.coroutines.Continuation<kotlin.Unit>): kotlin.Unit