Suppress clangd errors for bitwise-or on different enum types

Clangd generates error messages for any files that include
'third_party/blink/renderer/core/style/computed_style_constants.h' due
to it using the `|` operator between two instances of
`InternalGridAutoFlowAlgorithm` and `InternalGridAutoFlowDirection`.
Super annoying, so this CL explicitly casts them to integers to fix
that.

Change-Id: I79cc9f263ebfb8bd8ee5902741e857dac77138d4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2015550Reviewed-by: Anders Hartvoll Ruud <andruud@chromium.org>
Commit-Queue: Will Cassella <cassew@google.com>
Cr-Commit-Position: refs/heads/master@{#734585}

third_party/blink/renderer/core/style/computed_style_constants.h

@@ -152,14 +152,14 @@ enum InternalGridAutoFlowDirection {
 };
 
 enum GridAutoFlow {
-  kAutoFlowRow =
-      kInternalAutoFlowAlgorithmSparse | kInternalAutoFlowDirectionRow,
-  kAutoFlowColumn =
-      kInternalAutoFlowAlgorithmSparse | kInternalAutoFlowDirectionColumn,
+  kAutoFlowRow = int(kInternalAutoFlowAlgorithmSparse) |
+                 int(kInternalAutoFlowDirectionRow),
+  kAutoFlowColumn = int(kInternalAutoFlowAlgorithmSparse) |
+                    int(kInternalAutoFlowDirectionColumn),
   kAutoFlowRowDense =
-      kInternalAutoFlowAlgorithmDense | kInternalAutoFlowDirectionRow,
-  kAutoFlowColumnDense =
-      kInternalAutoFlowAlgorithmDense | kInternalAutoFlowDirectionColumn
+      int(kInternalAutoFlowAlgorithmDense) | int(kInternalAutoFlowDirectionRow),
+  kAutoFlowColumnDense = int(kInternalAutoFlowAlgorithmDense) |
+                         int(kInternalAutoFlowDirectionColumn)
 };
 
 static const size_t kContainmentBits = 4;