Java8CollectionsApiInspection & Java8ReplaceMapGetInspection merged into Java8MapApiInspection; support method references in computeIfAbsent

fix for IDEA-163932 Map.get suggested replacement with Map.getOrDefault is misleading

java/java-tests/testData/inspection/java8MapApi/beforeSimpleIf.java

@@ -0,0 +1,14 @@
+// "Replace with 'putIfAbsent' method call" "true"
+import java.util.Map;
+
+class Test{
+
+  Integer m2(Map<String, Integer> map) {
+    if (!map.conta<caret>insKey("asd")) {
+      return map.put("asd", 123);
+    } else {
+      return map.get("asd");
+    }
+  }
+
+}