Extract Function: Capitalize conflict messages

annotations/com/intellij/refactoring/util/annotations.xml

@@ -0,0 +1,5 @@
+<root>
+  <item name='com.intellij.refactoring.util.RefactoringUIUtil java.lang.String getDescription(com.intellij.psi.PsiElement, boolean)'>
+    <annotation name='org.jetbrains.annotations.NotNull'/>
+  </item>
+</root>

idea/src/org/jetbrains/jet/plugin/refactoring/JetRefactoringBundle.java

@@ -18,6 +18,7 @@ package org.jetbrains.jet.plugin.refactoring;
 
 import com.intellij.CommonBundle;
 import org.jetbrains.annotations.NonNls;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.PropertyKey;
 
 import java.lang.ref.Reference;
@@ -33,6 +34,7 @@ public class JetRefactoringBundle {
     private JetRefactoringBundle() {
     }
 
+    @NotNull
     public static String message(@NonNls @PropertyKey(resourceBundle = BUNDLE)String key, Object... params) {
         return CommonBundle.message(getBundle(), key, params);
     }

idea/src/org/jetbrains/jet/plugin/refactoring/extractFunction/extractFunctionUtils.kt

@@ -672,7 +672,7 @@ fun ExtractionDescriptor.validate(): ExtractionDescriptorWithConflicts {
                     JetRefactoringBundle.message(
                             "0.will.no.longer.be.accessible.after.extraction",
                             RefactoringUIUtil.getDescription(resolveResult.declaration, true)
-                    )
+                    ).capitalize()
             )
             continue
         }
@@ -682,7 +682,7 @@ fun ExtractionDescriptor.validate(): ExtractionDescriptorWithConflicts {
                     resolveResult.originalRefExpr,
                     JetRefactoringBundle.message(
                             "0.will.become.invisible.after.extraction",
-                            RefactoringUIUtil.getDescription(resolveResult.declaration, true)
+                            RefactoringUIUtil.getDescription(resolveResult.declaration, true).capitalize()
                     )
             )
         }

idea/testData/refactoring/extractFunction/basic/localFunctionRef.kt.conflicts

@@ -1 +1 @@
-function foo.bar will no longer be accessible after extraction
+Function foo.bar will no longer be accessible after extraction

idea/testData/refactoring/extractFunction/basic/misdirectedRef.kt.conflicts

@@ -1 +1 @@
-function foo.bar will no longer be accessible after extraction
+Function foo.bar will no longer be accessible after extraction

idea/testData/refactoring/extractFunction/basic/privateMemberRef.kt.conflicts

@@ -1 +1 @@
-property A.t will become invisible after extraction
+Property A.t will become invisible after extraction