replace 'trait' keyword with 'interface' in user-visible messages and code generation tools

idea/testData/quickfix/createFromUsage/createClass/importDirective/enumEntryInJavaEnum.before.Main.kt

@@ -2,7 +2,7 @@
 // ACTION: Create annotation 'A'
 // ACTION: Create class 'A'
 // ACTION: Create enum 'A'
-// ACTION: Create trait 'A'
+// ACTION: Create interface 'A'
 // ERROR: Unresolved reference: A
 import E.<caret>A
 

idea/testData/quickfix/createFromUsage/createClass/importDirective/enumEntryInPackage.kt

@@ -1,6 +1,6 @@
 // "Create enum constant 'A'" "false"
 // ACTION: Create class 'A'
-// ACTION: Create trait 'A'
+// ACTION: Create interface 'A'
 // ACTION: Create object 'A'
 // ACTION: Create enum 'A'
 // ACTION: Create annotation 'A'

idea/testData/quickfix/createFromUsage/createClass/importDirective/enumEntryWithQualifier.kt

@@ -1,6 +1,6 @@
 // "Create enum constant 'A'" "false"
 // ACTION: Create class 'A'
-// ACTION: Create trait 'A'
+// ACTION: Create interface 'A'
 // ACTION: Create object 'A'
 // ACTION: Create enum 'A'
 // ACTION: Create annotation 'A'

idea/testData/quickfix/createFromUsage/createClass/importDirective/objectWithJavaQualifier.before.Main.kt

@@ -2,8 +2,8 @@
 // ERROR: Unresolved reference: A
 // ACTION: Create annotation 'A'
 // ACTION: Create class 'A'
+// ACTION: Create interface 'A'
 // ACTION: Create enum 'A'
-// ACTION: Create trait 'A'
 import J.<caret>A
 
 class X {

idea/testData/quickfix/createFromUsage/createClass/importDirective/traitInPackage.kt

@@ -1,4 +1,4 @@
-// "Create trait 'A'" "true"
+// "Create interface 'A'" "true"
 package p
 
 import p.<caret>A

idea/testData/quickfix/createFromUsage/createClass/importDirective/traitInPackage.kt.after

@@ -1,8 +1,8 @@
-// "Create trait 'A'" "true"
+// "Create interface 'A'" "true"
 package p
 
 import p.A
 
-trait A {
+interface A {
 
 }

idea/testData/quickfix/createFromUsage/createClass/importDirective/traitWithJavaQualifier.after.kt

@@ -1,4 +1,4 @@
-// "Create trait 'A'" "true"
+// "Create interface 'A'" "true"
 // ERROR: Unresolved reference: A
 import J.A
 

idea/testData/quickfix/createFromUsage/createClass/importDirective/traitWithJavaQualifier.before.Main.kt

@@ -1,4 +1,4 @@
-// "Create trait 'A'" "true"
+// "Create interface 'A'" "true"
 // ERROR: Unresolved reference: A
 import J.<caret>A
 

idea/testData/quickfix/createFromUsage/createClass/importDirective/traitWithQualifier.kt

@@ -1,4 +1,4 @@
-// "Create trait 'A'" "true"
+// "Create interface 'A'" "true"
 package p
 
 import p.X.<caret>A

idea/testData/quickfix/createFromUsage/createClass/importDirective/traitWithQualifier.kt.after

@@ -1,10 +1,10 @@
-// "Create trait 'A'" "true"
+// "Create interface 'A'" "true"
 package p
 
 import p.X.A
 
 class X {
-    trait A {
+    interface A {
 
     }