[wasm] Write fuzzers for single wasm sections.

test/fuzzer/fuzzer.gyp

Index: test/fuzzer/fuzzer.gyp
diff --git a/test/fuzzer/fuzzer.gyp b/test/fuzzer/fuzzer.gyp
index 9e3b8e954cc7906fec72b5bcb2dcc91dd0d5b754..013ad36ba409b5ca6899188c2893e8b235fc7660 100644
--- a/test/fuzzer/fuzzer.gyp
+++ b/test/fuzzer/fuzzer.gyp
@@ -171,6 +171,36 @@
       ],
     },
     {
+      'target_name': 'v8_simple_wasm_section_fuzzer',
+      'type': 'executable',
+      'dependencies': [
+        'wasm_section_fuzzer_lib',
+      ],
+      'include_dirs': [
+        '../..',
+      ],
+      'sources': [
+        'fuzzer.cc',
+      ],
+    },
+    {
+      'target_name': 'wasm_section_fuzzer_lib',
+      'type': 'static_library',
+      'dependencies': [
+        'fuzzer_support',
+      ],
+      'include_dirs': [
+        '../..',
+      ],
+      'sources': [  ### gcmole(all) ###
+        'wasm-section.cc',
+        '../cctest/wasm/wasm-module-runner.cc',
+        '../cctest/wasm/wasm-module-runner.h',
+        '../fuzzer/wasm-section-fuzzers.cc',
+        '../fuzzer/wasm-section-fuzzers.h',
+      ],
+    },
+    {
       'target_name': 'fuzzer_support',
       'type': 'static_library',
       'dependencies': [