Fix bug with member extensions with explicit receiver

Co-authored-by: Ilya Kirillov <ilya.kirillov@jetbrains.com>

idea/idea-completion/testData/basic/common/primitiveCompletion/classExtensionFunctionExplicitReceiver.kt

@@ -0,0 +1,11 @@
+class A {
+    fun Int.intExtFun() {}
+    val Int.intExtVal: Int get() = 0
+}
+
+fun usage() {
+    A().<caret>
+}
+
+// ABSENT: intExtFun
+// ABSENT: intExtVal

idea/idea-completion/testData/basic/common/primitiveCompletion/classFieldsAndFunctions.kt

@@ -2,6 +2,9 @@ class A {
     fun aa() {}
     val aaa = 10
 
+    fun Int.extFun() {}
+    fun Int.extVal() {}
+
     fun test() {
         <caret>
     }
@@ -9,3 +12,6 @@ class A {
 
 // EXIST: aa
 // EXIST: aaa
+// ESIST: test
+// ABSENT: extFun
+// ABSENT: extVal

idea/idea-completion/testData/basic/common/primitiveCompletion/implicitReceiverCompletion.kt

@@ -5,13 +5,10 @@ class A {
 
 fun A.run(action: A.() -> Unit) {}
 
-fun test(a: A) {
+fun test() {
+    val a = A()
     a.run {
-
         <caret>
-
-        // remove this
-        Unit
     }
 }