[wasm] Clean up some DCHECKS in asm->wasm.

src/wasm/ast-decoder.h

 // 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.
 
 #ifndef V8_WASM_AST_DECODER_H_
 #define V8_WASM_AST_DECODER_H_
 
 #include "src/signature.h"
 #include "src/wasm/decoder.h"
 #include "src/wasm/wasm-opcodes.h"
@@ skipping 201 matching lines @@
       case kAstF32:
         local_f32_count += count;
         break;
       case kAstF64:
         local_f64_count += count;
         break;
       default:
         UNREACHABLE();
     }
     total_locals += count;
-    DCHECK(total_locals ==
-           (sig->parameter_count() + local_i32_count + local_i64_count +
-            local_f32_count + local_f64_count));
+    DCHECK_EQ(total_locals,
+              (sig->parameter_count() + local_i32_count + local_i64_count +
+               local_f32_count + local_f64_count));
   }
 
   void SumLocals() {
     total_locals = static_cast<uint32_t>(sig->parameter_count()) +
                    local_i32_count + local_i64_count + local_f32_count +
                    local_f64_count;
   }
 };
 
 struct Tree;
@@ skipping 29 matching lines @@
 // Computes the length of the opcode at the given address.
 int OpcodeLength(const byte* pc, const byte* end);
 
 // Computes the arity (number of sub-nodes) of the opcode at the given address.
 int OpcodeArity(FunctionEnv* env, const byte* pc, const byte* end);
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_AST_DECODER_H_