Rename unary plus() and minus() to unaryPlus() and unaryMinus()

compiler/testData/diagnostics/tests/DeprecatedUnaryOperatorConventions.kt

@@ -0,0 +1,22 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+class Example {
+    operator fun plus(): String = ""
+    operator fun unaryPlus(): Int = 0
+}
+
+class ExampleDeprecated {
+    operator fun plus(): String = ""
+}
+
+operator fun String.plus(): String = this
+operator fun String.unaryPlus(): Int = 0
+
+fun test() {
+    requireInt(+ "")
+    requireInt(+ Example())
+    requireString(+ ExampleDeprecated())
+}
+
+fun requireInt(n: Int) {}
+fun requireString(s: String) {}

compiler/testData/diagnostics/tests/DeprecatedUnaryOperatorConventions.txt

@@ -0,0 +1,24 @@
+package
+
+public fun requireInt(/*0*/ n: kotlin.Int): kotlin.Unit
+public fun requireString(/*0*/ s: kotlin.String): kotlin.Unit
+public fun test(): kotlin.Unit
+public operator fun kotlin.String.plus(): kotlin.String
+public operator fun kotlin.String.unaryPlus(): kotlin.Int
+
+public final class Example {
+    public constructor Example()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public final operator fun plus(): kotlin.String
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    public final operator fun unaryPlus(): kotlin.Int
+}
+
+public final class ExampleDeprecated {
+    public constructor ExampleDeprecated()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public final operator fun plus(): kotlin.String
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/testsWithJsStdLib/dynamicTypes/conventions.dynamic.txt

@@ -1,5 +1,5 @@
-public final fun plus(): dynamic
-public final fun minus(): dynamic
+public final fun unaryPlus(): dynamic
+public final fun unaryMinus(): dynamic
 public final fun not(): dynamic
 public final fun plus(/*0*/ p0: dynamic): dynamic
 public final fun plus(/*0*/ p0: dynamic): dynamic