Add test for inspections suppression

idea/testData/quickfix/suppress/inspections/ifNullToElvis.kt

@@ -0,0 +1,9 @@
+// "Suppress 'IfNullToElvis' for fun foo" "true"
+
+fun foo(p: List<String?>, b: Boolean) {
+    var v = p[0]
+    <caret>if (v == null) return
+    if (b) v = null
+}
+
+// TOOL: org.jetbrains.kotlin.idea.intentions.IfNullToElvisInspection

idea/testData/quickfix/suppress/inspections/ifNullToElvis.kt.after

@@ -0,0 +1,10 @@
+// "Suppress 'IfNullToElvis' for fun foo" "true"
+
+@Suppress("IfNullToElvis")
+fun foo(p: List<String?>, b: Boolean) {
+    var v = p[0]
+    <caret>if (v == null) return
+    if (b) v = null
+}
+
+// TOOL: org.jetbrains.kotlin.idea.intentions.IfNullToElvisInspection

idea/testData/quickfix/suppress/inspections/unusedImports.kt

@@ -0,0 +1,5 @@
+// "Suppress 'KotlinUnusedImport' for file ${file}" "true"
+
+import<caret> java.io.*
+
+// TOOL: org.jetbrains.kotlin.idea.inspections.KotlinUnusedImportInspection

idea/testData/quickfix/suppress/inspections/unusedImports.kt.after

@@ -0,0 +1,7 @@
+// "Suppress 'KotlinUnusedImport' for file ${file}" "true"
+
+@file:Suppress("KotlinUnusedImport")
+
+import java.io.*
+
+// TOOL: org.jetbrains.kotlin.idea.inspections.KotlinUnusedImportInspection