No vfs invalidation if reading content failed with OOME (r=Peter.Gromov)

platform/platform-impl/src/com/intellij/openapi/vfs/newvfs/persistent/FSRecords.java

@@ -1399,6 +1399,8 @@ public class FSRecords {
         r.unlock();
       }
       return doReadContentById(page);
+    } catch (OutOfMemoryError outOfMemoryError) {
+      throw outOfMemoryError;
     }
     catch (Throwable e) {
       DbConnection.handleError(e);