Convert FoldInitializerAndIfToElvisIntention to inspection and decrease severity to INFO

#KT-19643 Fixed

idea/testData/inspectionsLocal/foldInitializerAndIfToElvis/.inspection

@@ -0,0 +1 @@
+org.jetbrains.kotlin.idea.inspections.FoldInitializerAndIfToElvisInspection

idea/testData/inspectionsLocal/foldInitializerAndIfToElvis/IfNotNull.kt

@@ -1,4 +1,4 @@
-// IS_APPLICABLE: false
+// PROBLEM: none
 fun foo(p: List<String?>): Int {
     val v = p[0]
     <caret>if (v != null) return -1

idea/testData/inspectionsLocal/foldInitializerAndIfToElvis/IsSideTypeFake.kt

@@ -1,4 +1,4 @@
-// IS_APPLICABLE: false
+// PROBLEM: none
 interface A {
     fun a() {}
 }

idea/testData/inspectionsLocal/foldInitializerAndIfToElvis/IsSuperTypeFake.kt

@@ -1,4 +1,4 @@
-// IS_APPLICABLE: false
+// PROBLEM: none
 open class A
 
 open class B : A() {

idea/testData/inspectionsLocal/foldInitializerAndIfToElvis/MultiStatementBlock.kt

@@ -1,4 +1,4 @@
-// IS_APPLICABLE: false
+// PROBLEM: none
 fun foo(p: List<String?>) {
     val v = p[0]
     <caret>if (v == null) {

idea/testData/inspectionsLocal/foldInitializerAndIfToElvis/NotExit.kt

@@ -1,4 +1,4 @@
-// IS_APPLICABLE: false
+// PROBLEM: none
 fun foo(p: List<String?>): Int? {
     val v = p[0]
     <caret>if (v == null) bar()

idea/testData/inspectionsLocal/foldInitializerAndIfToElvis/NotIsNullableType.kt

@@ -1,4 +1,4 @@
-// IS_APPLICABLE: false
+// PROBLEM: none
 fun test(): String {
     val foo = foo()
     <caret>if (foo !is String?) return "0"

idea/testData/inspectionsLocal/foldInitializerAndIfToElvis/OtherVar1.kt

@@ -1,4 +1,4 @@
-// IS_APPLICABLE: false
+// PROBLEM: none
 class C {
     var v: String? = null
 

idea/testData/inspectionsLocal/foldInitializerAndIfToElvis/OtherVar2.kt

@@ -1,4 +1,4 @@
-// IS_APPLICABLE: false
+// PROBLEM: none
 class C {
     var x: String? = null
 

idea/testData/inspectionsLocal/foldInitializerAndIfToElvis/UsedInside.kt

@@ -1,4 +1,4 @@
-// IS_APPLICABLE: false
+// PROBLEM: none
 
 interface A {
     val s: String

idea/testData/inspectionsLocal/foldInitializerAndIfToElvis/UsedInsideInTemplate.kt

@@ -1,4 +1,4 @@
-// IS_APPLICABLE: false
+// PROBLEM: none
 
 interface A {
     val s: String

idea/testData/intentions/foldInitializerAndIfToElvis/.intention

@@ -1 +0,0 @@
-org.jetbrains.kotlin.idea.intentions.FoldInitializerAndIfToElvisIntention

idea/testData/quickfix/suppress/inspections/constantConditionIf.kt

@@ -0,0 +1,8 @@
+// "Suppress 'ConstantConditionIf' for fun foo" "true"
+
+fun foo() {
+    if (<caret>true) {
+    }
+}
+
+// TOOL: org.jetbrains.kotlin.idea.inspections.ConstantConditionIfInspection

idea/testData/quickfix/suppress/inspections/constantConditionIf.kt.after

@@ -0,0 +1,9 @@
+// "Suppress 'ConstantConditionIf' for fun foo" "true"
+
+@Suppress("ConstantConditionIf")
+fun foo() {
+    if (true) {
+    }
+}
+
+// TOOL: org.jetbrains.kotlin.idea.inspections.ConstantConditionIfInspection

idea/testData/quickfix/suppress/inspections/ifNullToElvis.kt

@@ -1,9 +0,0 @@
-// "Suppress 'FoldInitializerAndIfToElvis' for fun foo" "true"
-
-fun foo(p: List<String?>, b: Boolean) {
-    var v = p[0]
-    <caret>if (v == null) return
-    if (b) v = null
-}
-
-// TOOL: org.jetbrains.kotlin.idea.intentions.FoldInitializerAndIfToElvisInspection

idea/testData/quickfix/suppress/inspections/ifNullToElvis.kt.after

@@ -1,10 +0,0 @@
-// "Suppress 'FoldInitializerAndIfToElvis' for fun foo" "true"
-
-@Suppress("FoldInitializerAndIfToElvis")
-fun foo(p: List<String?>, b: Boolean) {
-    var v = p[0]
-    <caret>if (v == null) return
-    if (b) v = null
-}
-
-// TOOL: org.jetbrains.kotlin.idea.intentions.FoldInitializerAndIfToElvisInspection