merge(3p/absl): subtree merge of Abseil up to e19260f

... notably, this includes Abseil's own StatusOr type, which
conflicted with our implementation (that was taken from TensorFlow).

Change-Id: Ie7d6764b64055caaeb8dc7b6b9d066291e6b538f

third_party/abseil_cpp/absl/random/internal/BUILD.bazel

@@ -30,7 +30,7 @@ package(default_visibility = [
     "//absl/random:__pkg__",
 ])
 
-licenses(["notice"])  # Apache 2.0
+licenses(["notice"])
 
 cc_library(
     name = "traits",
@@ -59,7 +59,10 @@ cc_library(
     ],
     copts = ABSL_DEFAULT_COPTS,
     linkopts = ABSL_DEFAULT_LINKOPTS,
-    deps = ["//absl/base:config"],
+    deps = [
+        "//absl/base:config",
+        "//absl/meta:type_traits",
+    ],
 )
 
 cc_library(
@@ -96,6 +99,7 @@ cc_library(
     copts = ABSL_DEFAULT_COPTS,
     linkopts = select({
         "//absl:windows": [],
+        "//absl:wasm": [],
         "//conditions:default": ["-pthread"],
     }) + ABSL_DEFAULT_LINKOPTS,
     deps = [
@@ -319,10 +323,6 @@ cc_library(
         "//absl:windows": [],
         "//conditions:default": ["-Wno-pass-failed"],
     }),
-    # copts in RANDEN_HWAES_COPTS can make this target unusable as a module
-    # leading to a Clang diagnostic. Furthermore, it only has a private header
-    # anyway and thus there wouldn't be any gain from using it as a module.
-    features = ["-header_modules"],
     linkopts = ABSL_DEFAULT_LINKOPTS,
     deps = [
         ":platform",
@@ -716,3 +716,15 @@ cc_test(
         "@com_google_googletest//:gtest_main",
     ],
 )
+
+cc_test(
+    name = "uniform_helper_test",
+    size = "small",
+    srcs = ["uniform_helper_test.cc"],
+    copts = ABSL_TEST_COPTS,
+    linkopts = ABSL_DEFAULT_LINKOPTS,
+    deps = [
+        ":uniform_helper",
+        "@com_google_googletest//:gtest_main",
+    ],
+)