[java] adds support for Java 9's improved try-with-resources (IDEA-140266)

PSI, parser, highlighting, exception analysis, control flow, completion.

java/java-tests/testData/codeInsight/completion/normal/OnlyResourcesInResourceList5.java

@@ -0,0 +1,8 @@
+class MyClass {
+  void f() {
+    String response;
+    AutoCloseable resource;
+    try (re<caret>) {
+    }
+  }
+}

java/java-tests/testData/codeInsight/completion/normal/OnlyResourcesInResourceList5_after.java

@@ -0,0 +1,8 @@
+class MyClass {
+  void f() {
+    String response;
+    AutoCloseable resource;
+    try (resource<caret>) {
+    }
+  }
+}