Simplifiable call inspection: add filter -> filterNotNull replacement

Related to KT-30501

idea/testData/inspectionsLocal/collections/simplifiableCall/filterNotNullBrackets.kt

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(list: List<String?>) {
+    list.<caret>filter({ it != null })
+}

idea/testData/inspectionsLocal/collections/simplifiableCall/filterNotNullBrackets.kt.after

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(list: List<String?>) {
+    list.filterNotNull()
+}

idea/testData/inspectionsLocal/collections/simplifiableCall/filterNotNullDestructuring.kt

@@ -0,0 +1,5 @@
+// WITH_RUNTIME
+// PROBLEM: none
+fun test(map: Map<String?, String?>) {
+    map.<caret>filter { (k, v) -> k != null && v != null }
+}

idea/testData/inspectionsLocal/collections/simplifiableCall/filterNotNullExplicit.kt

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(list: List<String?>) {
+    list.<caret>filter { arg -> arg != null }
+}

idea/testData/inspectionsLocal/collections/simplifiableCall/filterNotNullExplicit.kt.after

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(list: List<String?>) {
+    list.filterNotNull()
+}

idea/testData/inspectionsLocal/collections/simplifiableCall/filterNotNullFake.kt

@@ -0,0 +1,5 @@
+// WITH_RUNTIME
+// PROBLEM: none
+fun test(list: List<Boolean>) {
+    list.<caret>filter { it }
+}

idea/testData/inspectionsLocal/collections/simplifiableCall/filterNotNullIdentity.kt

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(list: List<String?>) {
+    list.<caret>filter { it !== null }
+}

idea/testData/inspectionsLocal/collections/simplifiableCall/filterNotNullIdentity.kt.after

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(list: List<String?>) {
+    list.filterNotNull()
+}

idea/testData/inspectionsLocal/collections/simplifiableCall/filterNotNullMap.kt

@@ -0,0 +1,5 @@
+// WITH_RUNTIME
+// PROBLEM: none
+fun test(map: Map<String?, String?>) {
+    map.<caret>filter { it != null }
+}

idea/testData/inspectionsLocal/collections/simplifiableCall/filterNotNullReverse.kt

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(list: List<String?>) {
+    list.<caret>filter { null != it }
+}

idea/testData/inspectionsLocal/collections/simplifiableCall/filterNotNullReverse.kt.after

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(list: List<String?>) {
+    list.filterNotNull()
+}

idea/testData/inspectionsLocal/collections/simplifiableCall/filterNotNullSimple.kt

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(list: List<String?>) {
+    list.<caret>filter { it != null }
+}

idea/testData/inspectionsLocal/collections/simplifiableCall/filterNotNullSimple.kt.after

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(list: List<String?>) {
+    list.filterNotNull()
+}