Make Array.size() a function instead of a property

Also add a deprecated extension property to help migration. This is done to
unify getting size of arrays and collections

idea/testData/intentions/makeTypeExplicitInLambda/returnDeclaredParamNotDeclared.kt

@@ -1,3 +1,3 @@
 fun main() {
-    val bar: (Array<String>) -> Int = {<caret>(arr): Int -> arr.size}
+    val bar: (Array<String>) -> Int = {<caret>(arr): Int -> arr.size()}
 }

idea/testData/intentions/makeTypeExplicitInLambda/returnDeclaredParamNotDeclared.kt.after

@@ -1,3 +1,3 @@
 fun main() {
-    val bar: (Array<String>) -> Int = {(arr: Array<String>): Int -> arr.size}
+    val bar: (Array<String>) -> Int = {(arr: Array<String>): Int -> arr.size()}
 }

idea/testData/intentions/makeTypeImplicitInLambda/returnDeclaredParamNotDeclared.kt

@@ -1,3 +1,3 @@
 fun main() {
-    val bar: (Array<String>) -> Int = {<caret>(arr): Int -> arr.size}
+    val bar: (Array<String>) -> Int = {<caret>(arr): Int -> arr.size()}
 }

idea/testData/intentions/makeTypeImplicitInLambda/returnDeclaredParamNotDeclared.kt.after

@@ -1,3 +1,3 @@
 fun main() {
-    val bar: (Array<String>) -> Int = { arr -> arr.size}
+    val bar: (Array<String>) -> Int = { arr -> arr.size()}
 }