added supporting of @var variables. The @var annotation has the same functionality as the @val except 'final' modifier.

test/transform/resource/after-ecj/VarComplex.java

@@ -0,0 +1,26 @@
+import lombok.var;
+public class VarComplex {
+  private String field = "";
+  private static final int CONSTANT = 20;
+  <clinit>() {
+  }
+  public VarComplex() {
+    super();
+  }
+  public void testComplex() {
+    @var char[] shouldBeCharArray = field.toCharArray();
+    @var int shouldBeInt = CONSTANT;
+    @var java.lang.Object lock = new Object();
+    synchronized (lock)
+      {
+        @var int field = 20;
+        @var int inner = 10;
+        switch (field) {
+        case 5 :
+            @var char[] shouldBeCharArray2 = shouldBeCharArray;
+            @var int innerInner = inner;
+        }
+      }
+    @var java.lang.String shouldBeString = field;
+  }
+}