[grpc][Gpr_To_Absl_Logging] Migrating from gpr to absl logging GPR_ASSERT (#36223)

[grpc][Gpr_To_Absl_Logging] Migrating from gpr to absl logging - GPR_ASSERT
Replacing GPR_ASSERT with absl CHECK

Will not be replacing CHECK with CHECK_EQ , CHECK_NE etc because there are too many callsites.

This could be done using Cider-V once these changes are submitted if we want to clean up later. Given that we have 4000+ instances of GPR_ASSERT to edit, Doing it manually is too much work for both the author and reviewer.

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Closes #36223

COPYBARA_INTEGRATE_REVIEW=https://github.com/grpc/grpc/pull/36223 from tanvi-jagtap:assert_grpclb 205ba1d023
PiperOrigin-RevId: 622378411

CMakeLists.txt

@@ -16134,6 +16134,7 @@ target_include_directories(grpclb_api_test
 target_link_libraries(grpclb_api_test
   ${_gRPC_ALLTARGETS_LIBRARIES}
   gtest
+  absl::check
   grpc++_test_util
 )
 

build_autogenerated.yaml

@@ -10850,6 +10850,7 @@ targets:
   - test/cpp/grpclb/grpclb_api_test.cc
   deps:
   - gtest
+  - absl/log:check
   - grpc++_test_util
 - name: grpclb_end2end_test
   gtest: true

test/cpp/grpclb/BUILD

@@ -25,6 +25,7 @@ grpc_cc_test(
     name = "grpclb_api_test",
     srcs = ["grpclb_api_test.cc"],
     external_deps = [
+        "absl/log:check",
         "gtest",
     ],
     deps = [

test/cpp/grpclb/grpclb_api_test.cc

@@ -18,6 +18,7 @@
 
 #include <gtest/gtest.h>
 
+#include "absl/log/check.h"
 #include "google/protobuf/duration.upb.h"
 #include "upb/mem/arena.hpp"
 
@@ -45,7 +46,7 @@ class GrpclbTest : public ::testing::Test {
 
 std::string Ip4ToPackedString(const char* ip_str) {
   struct in_addr ip4;
-  GPR_ASSERT(inet_pton(AF_INET, ip_str, &ip4) == 1);
+  CHECK(inet_pton(AF_INET, ip_str, &ip4) == 1);
   return std::string(reinterpret_cast<const char*>(&ip4), sizeof(ip4));
 }
 
@@ -59,7 +60,7 @@ std::string PackedStringToIp(const grpc_core::GrpcLbServer& server) {
   } else {
     abort();
   }
-  GPR_ASSERT(inet_ntop(af, (void*)server.ip_addr, ip_str, 46) != nullptr);
+  CHECK(inet_ntop(af, (void*)server.ip_addr, ip_str, 46) != nullptr);
   return ip_str;
 }