Introduce OptionalExpectationInspection

It works at INFORMATION level only and is intended to form quick-fixes
to add relevant actual declarations.

#KT-25533 Fixed

idea/src/META-INF/plugin.xml

@@ -3057,6 +3057,15 @@ The Kotlin plugin provides language support in IntelliJ IDEA and Android Studio.
                      language="kotlin"
     />
 
+    <localInspection implementationClass="org.jetbrains.kotlin.idea.inspections.OptionalExpectationInspection"
+                     displayName="Optionally expected annotation has no actual annotation"
+                     groupPath="Kotlin"
+                     groupName="Style issues"
+                     enabledByDefault="true"
+                     level="INFORMATION"
+                     language="kotlin"
+    />
+
     <referenceImporter implementation="org.jetbrains.kotlin.idea.quickfix.KotlinReferenceImporter"/>
 
     <fileType.fileViewProviderFactory filetype="KJSM" implementationClass="com.intellij.psi.ClassFileViewProviderFactory"/>

idea/src/META-INF/plugin.xml.173

@@ -3055,6 +3055,15 @@ The Kotlin plugin provides language support in IntelliJ IDEA and Android Studio.
                      language="kotlin"
     />
 
+    <localInspection implementationClass="org.jetbrains.kotlin.idea.inspections.OptionalExpectationInspection"
+                     displayName="Optionally expected annotation has no actual annotation"
+                     groupPath="Kotlin"
+                     groupName="Style issues"
+                     enabledByDefault="true"
+                     level="INFORMATION"
+                     language="kotlin"
+    />
+
     <referenceImporter implementation="org.jetbrains.kotlin.idea.quickfix.KotlinReferenceImporter"/>
 
     <fileType.fileViewProviderFactory filetype="KJSM" implementationClass="com.intellij.psi.ClassFileViewProviderFactory"/>

idea/src/META-INF/plugin.xml.181

@@ -3056,6 +3056,15 @@ The Kotlin plugin provides language support in IntelliJ IDEA and Android Studio.
                      language="kotlin"
     />
 
+    <localInspection implementationClass="org.jetbrains.kotlin.idea.inspections.OptionalExpectationInspection"
+                     displayName="Optionally expected annotation has no actual annotation"
+                     groupPath="Kotlin"
+                     groupName="Style issues"
+                     enabledByDefault="true"
+                     level="INFORMATION"
+                     language="kotlin"
+    />
+
     <referenceImporter implementation="org.jetbrains.kotlin.idea.quickfix.KotlinReferenceImporter"/>
 
     <fileType.fileViewProviderFactory filetype="KJSM" implementationClass="com.intellij.psi.ClassFileViewProviderFactory"/>

idea/src/META-INF/plugin.xml.183

@@ -3057,6 +3057,15 @@ The Kotlin plugin provides language support in IntelliJ IDEA and Android Studio.
                      language="kotlin"
     />
 
+    <localInspection implementationClass="org.jetbrains.kotlin.idea.inspections.OptionalExpectationInspection"
+                     displayName="Optionally expected annotation has no actual annotation"
+                     groupPath="Kotlin"
+                     groupName="Style issues"
+                     enabledByDefault="true"
+                     level="INFORMATION"
+                     language="kotlin"
+    />
+
     <referenceImporter implementation="org.jetbrains.kotlin.idea.quickfix.KotlinReferenceImporter"/>
 
     <fileType.fileViewProviderFactory filetype="KJSM" implementationClass="com.intellij.psi.ClassFileViewProviderFactory"/>

idea/src/META-INF/plugin.xml.as31

@@ -3055,6 +3055,15 @@ The Kotlin plugin provides language support in IntelliJ IDEA and Android Studio.
                      language="kotlin"
     />
 
+    <localInspection implementationClass="org.jetbrains.kotlin.idea.inspections.OptionalExpectationInspection"
+                     displayName="Optionally expected annotation has no actual annotation"
+                     groupPath="Kotlin"
+                     groupName="Style issues"
+                     enabledByDefault="true"
+                     level="INFORMATION"
+                     language="kotlin"
+    />
+
     <referenceImporter implementation="org.jetbrains.kotlin.idea.quickfix.KotlinReferenceImporter"/>
 
     <fileType.fileViewProviderFactory filetype="KJSM" implementationClass="com.intellij.psi.ClassFileViewProviderFactory"/>

idea/src/META-INF/plugin.xml.as32

@@ -3055,6 +3055,15 @@ The Kotlin plugin provides language support in IntelliJ IDEA and Android Studio.
                      language="kotlin"
     />
 
+    <localInspection implementationClass="org.jetbrains.kotlin.idea.inspections.OptionalExpectationInspection"
+                     displayName="Optionally expected annotation has no actual annotation"
+                     groupPath="Kotlin"
+                     groupName="Style issues"
+                     enabledByDefault="true"
+                     level="INFORMATION"
+                     language="kotlin"
+    />
+
     <referenceImporter implementation="org.jetbrains.kotlin.idea.quickfix.KotlinReferenceImporter"/>
 
     <fileType.fileViewProviderFactory filetype="KJSM" implementationClass="com.intellij.psi.ClassFileViewProviderFactory"/>

idea/src/META-INF/plugin.xml.as33

@@ -3057,6 +3057,15 @@ The Kotlin plugin provides language support in IntelliJ IDEA and Android Studio.
                      language="kotlin"
     />
 
+    <localInspection implementationClass="org.jetbrains.kotlin.idea.inspections.OptionalExpectationInspection"
+                     displayName="Optionally expected annotation has no actual annotation"
+                     groupPath="Kotlin"
+                     groupName="Style issues"
+                     enabledByDefault="true"
+                     level="INFORMATION"
+                     language="kotlin"
+    />
+
     <referenceImporter implementation="org.jetbrains.kotlin.idea.quickfix.KotlinReferenceImporter"/>
 
     <fileType.fileViewProviderFactory filetype="KJSM" implementationClass="com.intellij.psi.ClassFileViewProviderFactory"/>