Format spaces around !is and !in (KT-13314)

#KT-13314 Fixed

ChangeLog.md

@@ -196,6 +196,7 @@ These artifacts include extensions for the types available in the latter JDKs, s
 #### Formatter
 
 - [`KT-12830`](https://youtrack.jetbrains.com/issue/KT-12830) Remove spaces before *?* in nullable types
+- [`KT-13314`](https://youtrack.jetbrains.com/issue/KT-13314) Format spaces around !is and !in
 
 #### Intention actions, inspections and quickfixes
 

idea/formatter/src/org/jetbrains/kotlin/idea/formatter/kotlinSpacingRules.kt

@@ -167,7 +167,9 @@ fun createSpacingBuilder(settings: CodeStyleSettings, builderUtil: KotlinSpacing
 
             around(AS_KEYWORD).spaces(1)
             around(IS_KEYWORD).spaces(1)
+            around(NOT_IS).spaces(1)
             around(IN_KEYWORD).spaces(1)
+            around(NOT_IN).spaces(1)
             aroundInside(IDENTIFIER, BINARY_EXPRESSION).spaces(1)
 
             // before LPAR in constructor(): this() {}

idea/testData/formatter/NotIn.after.kt

@@ -0,0 +1,5 @@
+fun f() {
+    if (1 !in intArrayOf()) {
+
+    }
+}

idea/testData/formatter/NotIn.kt

@@ -0,0 +1,5 @@
+fun f() {
+    if (1   !in   intArrayOf()) {
+
+    }
+}

idea/testData/formatter/NotIs.after.kt

@@ -0,0 +1,5 @@
+fun f() {
+    if (1 !is Int) {
+
+    }
+}

idea/testData/formatter/NotIs.kt

@@ -0,0 +1,5 @@
+fun f() {
+    if (1   !is  Int) {
+
+    }
+}

idea/tests/org/jetbrains/kotlin/formatter/FormatterTestGenerated.java

@@ -433,6 +433,18 @@ public class FormatterTestGenerated extends AbstractFormatterTest {
             doTest(fileName);
         }
 
+        @TestMetadata("NotIn.after.kt")
+        public void testNotIn() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("idea/testData/formatter/NotIn.after.kt");
+            doTest(fileName);
+        }
+
+        @TestMetadata("NotIs.after.kt")
+        public void testNotIs() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("idea/testData/formatter/NotIs.after.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("NullableType.after.kt")
         public void testNullableType() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("idea/testData/formatter/NullableType.after.kt");