Allow to suppress warnings at file level

idea/testData/quickfix/suppress/annotationPosition/topLevelFunctionSuppressOnFile.kt

@@ -0,0 +1,3 @@
+// "Suppress 'REDUNDANT_NULLABLE' for file ${file}" "true"
+
+public fun foo(): String?<caret>? = null

idea/testData/quickfix/suppress/annotationPosition/topLevelFunctionSuppressOnFile.kt.after

@@ -0,0 +1,5 @@
+@file:Suppress("REDUNDANT_NULLABLE")
+
+// "Suppress 'REDUNDANT_NULLABLE' for file ${file}" "true"
+
+public fun foo(): String?<caret>? = null

idea/testData/quickfix/suppress/annotationPosition/topLevelFunctionSuppressOnFileOtherAnnotation.kt

@@ -0,0 +1,8 @@
+// "Suppress 'REDUNDANT_NULLABLE' for file ${file}" "true"
+// ERROR: This annotation is not applicable to target 'file' and use site target '@file'
+
+@file:Deprecated("Some")
+
+package test
+
+public fun foo(): String?<caret>? = null

idea/testData/quickfix/suppress/annotationPosition/topLevelFunctionSuppressOnFileOtherAnnotation.kt.after

@@ -0,0 +1,9 @@
+// "Suppress 'REDUNDANT_NULLABLE' for file ${file}" "true"
+// ERROR: This annotation is not applicable to target 'file' and use site target '@file'
+
+@file:Deprecated("Some")
+@file:Suppress("REDUNDANT_NULLABLE")
+
+package test
+
+public fun foo(): String?<caret>? = null

idea/testData/quickfix/suppress/annotationPosition/topLevelFunctionSuppressOnFileWithPackage.kt

@@ -0,0 +1,6 @@
+// "Suppress 'REDUNDANT_NULLABLE' for file ${file}" "true"
+/** Some Comment **/
+
+package test
+
+public fun foo(): String?<caret>? = null

idea/testData/quickfix/suppress/annotationPosition/topLevelFunctionSuppressOnFileWithPackage.kt.after

@@ -0,0 +1,8 @@
+// "Suppress 'REDUNDANT_NULLABLE' for file ${file}" "true"
+/** Some Comment **/
+
+@file:Suppress("REDUNDANT_NULLABLE")
+
+package test
+
+public fun foo(): String?<caret>? = null

idea/testData/quickfix/suppress/annotationPosition/topLevelFunctionSuppressOnFileWithSuppress.kt

@@ -0,0 +1,4 @@
+// "Suppress 'REDUNDANT_NULLABLE' for file ${file}" "true"
+@file:Suppress("unused")
+
+public fun foo(): String?<caret>? = null

idea/testData/quickfix/suppress/annotationPosition/topLevelFunctionSuppressOnFileWithSuppress.kt.after

@@ -0,0 +1,4 @@
+// "Suppress 'REDUNDANT_NULLABLE' for file ${file}" "true"
+@file:Suppress("unused", "REDUNDANT_NULLABLE")
+
+public fun foo(): String?<caret>? = null