Minor: fix broken tests

idea/idea-completion/testData/handlers/basic/override/KeepAnnotationBefore.kt

@@ -3,4 +3,4 @@ class A {
     o<caret>
 }
 
-// ELEMENT_TEXT: "override fun equals(other: Any?): Boolean {...}"
+// ELEMENT_TEXT: "override operator fun equals(other: Any?): Boolean {...}"

idea/idea-completion/testData/handlers/basic/override/KeepAnnotationBefore.kt.after

@@ -5,4 +5,4 @@ class A {
     }
 }
 
-// ELEMENT_TEXT: "override fun equals(other: Any?): Boolean {...}"
+// ELEMENT_TEXT: "override operator fun equals(other: Any?): Boolean {...}"

idea/idea-completion/testData/handlers/basic/override/KeepModifiersBefore.kt

@@ -3,4 +3,4 @@ class A {
     public o<caret>
 }
 
-// ELEMENT_TEXT: "override fun equals(other: Any?): Boolean {...}"
+// ELEMENT_TEXT: "override operator fun equals(other: Any?): Boolean {...}"

idea/idea-completion/testData/handlers/basic/override/KeepModifiersBefore.kt.after

@@ -5,4 +5,4 @@ class A {
     }
 }
 
-// ELEMENT_TEXT: "override fun equals(other: Any?): Boolean {...}"
+// ELEMENT_TEXT: "override operator fun equals(other: Any?): Boolean {...}"

idea/idea-completion/testData/handlers/basic/override/OverrideFunction.kt

@@ -2,4 +2,4 @@ class A {
     o<caret>
 }
 
-// ELEMENT_TEXT: "override fun equals(other: Any?): Boolean {...}"
+// ELEMENT_TEXT: "override operator fun equals(other: Any?): Boolean {...}"

idea/idea-completion/testData/handlers/basic/override/OverrideFunction.kt.after

@@ -4,4 +4,4 @@ class A {
     }
 }
 
-// ELEMENT_TEXT: "override fun equals(other: Any?): Boolean {...}"
+// ELEMENT_TEXT: "override operator fun equals(other: Any?): Boolean {...}"