Print usage count if it's rarely used.

PiperOrigin-RevId: 597083184

src/google/protobuf/compiler/cpp/tools/analyze_profile_proto.cc

@@ -440,7 +440,8 @@ static absl::StatusOr<Stats> AnalyzeProfileProto(
                   stream << " " << analysis.presence << "_PRESENT";
                 }
                 if (analysis.usage != PDProtoScale::kDefault) {
-                  stream << " " << analysis.usage << "_USED";
+                  stream << " " << analysis.usage << "_USED("
+                         << analysis.usage_count << ")";
                 }
               }
               if (optimized != PDProtoOptimization::kNone) {

src/google/protobuf/compiler/cpp/tools/analyze_profile_proto_test.cc

@@ -184,12 +184,12 @@ TEST(AnalyzeProfileProtoTest, PrintStatistics) {
   options.pool = DescriptorPool::generated_pool();
   EXPECT_STREQ(AnalyzeToText(info, options).c_str(),
                R"(Message google::protobuf::compiler::tools::AnalyzeThis
-  int32 id: RARELY_USED
-  string optional_string: RARELY_USED
-  string[] repeated_string: LIKELY_PRESENT RARELY_USED
-  AnalyzeChild optional_child: LIKELY_PRESENT RARELY_USED LAZY
-  AnalyzeChild[] repeated_child: LIKELY_PRESENT RARELY_USED
-  Nested nested: RARELY_USED
+  int32 id: RARELY_USED(100)
+  string optional_string: RARELY_USED(100)
+  string[] repeated_string: LIKELY_PRESENT RARELY_USED(100)
+  AnalyzeChild optional_child: LIKELY_PRESENT RARELY_USED(1) LAZY
+  AnalyzeChild[] repeated_child: LIKELY_PRESENT RARELY_USED(100)
+  Nested nested: RARELY_USED(100)
 ========
 singular_lazy_num=1
 singular_lazy_0usage_num=0