Redundant async inspection: support case with GlobalScope

Partial implementation of KT-28504

idea/testData/inspectionsLocal/coroutines/redundantAsync/globalScope.kt

@@ -1,9 +1,7 @@
 // WITH_RUNTIME
-// PROBLEM: none
 
 package kotlinx.coroutines
 
 suspend fun test(ctx: CoroutineContext) {
-    // Does not work yet (1.3.11)
     GlobalScope.<caret>async(ctx) { 42 }.await()
 }

idea/testData/inspectionsLocal/coroutines/redundantAsync/globalScope.kt.after

@@ -0,0 +1,7 @@
+// WITH_RUNTIME
+
+package kotlinx.coroutines
+
+suspend fun test(ctx: CoroutineContext) {
+    withContext(ctx) { 42 }
+}

idea/testData/inspectionsLocal/coroutines/redundantAsync/globalScopeNoContext.kt

@@ -0,0 +1,7 @@
+// WITH_RUNTIME
+
+package kotlinx.coroutines
+
+suspend fun test() {
+    GlobalScope.<caret>async() { 42 }.await()
+}

idea/testData/inspectionsLocal/coroutines/redundantAsync/globalScopeNoContext.kt.after

@@ -0,0 +1,7 @@
+// WITH_RUNTIME
+
+package kotlinx.coroutines
+
+suspend fun test() {
+    withContext(Dispatchers.Default) { 42 }
+}

idea/testData/inspectionsLocal/coroutines/redundantAsync/globalScopeNoContextNoPackage.kt

@@ -0,0 +1,8 @@
+// WITH_RUNTIME
+
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.async
+
+suspend fun test() {
+    GlobalScope.<caret>async() { 42 }.await()
+}

idea/testData/inspectionsLocal/coroutines/redundantAsync/globalScopeNoContextNoPackage.kt.after

@@ -0,0 +1,10 @@
+// WITH_RUNTIME
+
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.async
+import kotlinx.coroutines.withContext
+
+suspend fun test() {
+    withContext(Dispatchers.Default) { 42 }
+}