Separate module decoding counter into asm and wasm counters.

src/wasm/module-decoder.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/wasm/module-decoder.h"
 #include "src/wasm/function-body-decoder-impl.h"
 
 #include "src/base/functional.h"
 #include "src/base/platform/platform.h"
 #include "src/counters.h"
@@ skipping 1137 matching lines @@
     error_msg.reset(result);
   }
 };
 
 }  // namespace
 
 ModuleResult DecodeWasmModule(Isolate* isolate, const byte* module_start,
                               const byte* module_end, bool verify_functions,
                               ModuleOrigin origin) {
   HistogramTimerScope wasm_decode_module_time_scope(
-      isolate->counters()->wasm_decode_module_time());
+      IsWasm(origin) ? isolate->counters()->wasm_decode_wasm_module_time()
+                     : isolate->counters()->wasm_decode_asm_module_time());
   size_t size = module_end - module_start;
   if (module_start > module_end) return ModuleError("start > end");
   if (size >= kV8MaxWasmModuleSize)
     return ModuleError("size > maximum module size");
   // TODO(bradnelson): Improve histogram handling of size_t.
   isolate->counters()->wasm_module_size_bytes()->AddSample(
       static_cast<int>(size));
   // Signatures are stored in zone memory, which have the same lifetime
   // as the {module}.
   Zone* zone = new Zone(isolate->allocator(), ZONE_NAME);
@@ skipping 114 matching lines @@
     result.push_back({section_start, name_offset, name_length, payload_offset,
                       payload_length, section_length});
   }
 
   return result;
 }
 
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8