Completion: bold immediate members for extensions too

idea/testData/completion/basic/common/ImmediateExtensionMembers1.kt

@@ -0,0 +1,18 @@
+fun String.extFunForString(){}
+fun Any.extFunForAny(){}
+fun String?.extFunForStringNullable(){}
+
+class C {
+    fun Any.memberExtFunForAny(){}
+    fun String?.memberExtFunForStringNullable(){}
+
+    fun foo() {
+        "".<caret>
+    }
+}
+
+// EXIST: { itemText: "extFunForString", attributes: "bold" }
+// EXIST: { itemText: "extFunForAny", attributes: "" }
+// EXIST: { itemText: "extFunForStringNullable", attributes: "" }
+// EXIST: { itemText: "memberExtFunForAny", attributes: "" }
+// EXIST: { itemText: "memberExtFunForStringNullable", attributes: "" }

idea/testData/completion/basic/common/ImmediateExtensionMembers2.kt

@@ -0,0 +1,15 @@
+fun String.extFunForString(){}
+fun Any.extFunForAny(){}
+fun String?.extFunForStringNullable(){}
+
+class C {
+    fun foo(s: String?) {
+        if (s != null) {
+            s.<caret>
+        }
+    }
+}
+
+// EXIST: { itemText: "extFunForString", attributes: "bold" }
+// EXIST: { itemText: "extFunForAny", attributes: "" }
+// EXIST: { itemText: "extFunForStringNullable", attributes: "" }

idea/testData/completion/basic/common/ImmediateExtensionMembers3.kt

@@ -0,0 +1,17 @@
+fun C.extFunForC(){}
+fun D.extFunForD(){}
+fun Any.extFunForAny(){}
+
+open class C {
+    fun foo() {
+        if (this is D) {
+            <caret>
+        }
+    }
+}
+
+class D : C
+
+// EXIST: { itemText: "extFunForD", attributes: "bold" }
+// EXIST: { itemText: "extFunForC", attributes: "" }
+// EXIST: { itemText: "extFunForAny", attributes: "" }

idea/testData/completion/basic/common/ImmediateExtensionMembers4.kt

@@ -0,0 +1,17 @@
+fun C.extFunForC(){}
+fun T.extFunForT(){}
+fun Any.extFunForAny(){}
+
+open class C {
+    fun foo() {
+        if (this is T) {
+            <caret>
+        }
+    }
+}
+
+trait T
+
+// EXIST: { itemText: "extFunForT", attributes: "bold" }
+// EXIST: { itemText: "extFunForC", attributes: "bold" }
+// EXIST: { itemText: "extFunForAny", attributes: "" }