[wasm] Remove obsolete %IsNotAsmWasmCode predicate.

test/mjsunit/wasm/asm-wasm-stdlib.js

 // Copyright 2016 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.
 
 // Flags: --validate-asm --allow-natives-syntax
 
 var stdlib = this;
 
 function assertValidAsm(func) {
   assertTrue(%IsAsmWasmCode(func));
@@ skipping 84 matching lines @@
     return {};
   }
   for (var i = 0; i < stdlib_root_members.length; ++i) {
     var member = stdlib_root_members[i];
     var stdlib = {};
     stdlib[member] = 0;
     print(member);
     var code = Module.toString().replace('NaN', member);
     var decl = eval('(' + code + ')');
     decl(stdlib);
-    assertTrue(%IsNotAsmWasmCode(decl));
+    assertFalse(%IsAsmWasmCode(decl));
   }
   for (var i = 0; i < stdlib_math_members.length; ++i) {
     var member = stdlib_math_members[i];
     var stdlib = {Math:{}};
     stdlib['Math'][member] = 0;
     print(member);
     var code = Module.toString().replace('NaN', 'Math.' + member);
     var decl = eval('(' + code + ')');
     decl(stdlib);
-    assertTrue(%IsNotAsmWasmCode(decl));
+    assertFalse(%IsAsmWasmCode(decl));
   }
 })();
 
 
 (function TestMissingNaNStdlib() {
   function Module(stdlib) {
     "use asm";
     var foo = stdlib.NaN;
     return {};
   }
   for (var i = 0; i < stdlib_root_members.length; ++i) {
     var member = stdlib_root_members[i];
     var code = Module.toString().replace('NaN', member);
     var decl = eval('(' + code + ')');
     decl({});
-    assertTrue(%IsNotAsmWasmCode(decl));
+    assertFalse(%IsAsmWasmCode(decl));
   }
   for (var i = 0; i < stdlib_math_members.length; ++i) {
     var member = stdlib_math_members[i];
     var code = Module.toString().replace('NaN', 'Math.' + member);
     var decl = eval('(' + code + ')');
     assertThrows(function() {
       decl({});
-      assertTrue(%IsNotAsmWasmCode(decl));
+      assertFalse(%IsAsmWasmCode(decl));
     });
   }
 })();
 
 
 (function TestStdlibFunctionsInside() {
   function Module(stdlib) {
     "use asm";
 
     var StdlibMathCeil = stdlib.Math.ceil;
@@ skipping 301 matching lines @@
           if (!compare(expected, actual)) {
             print(expected + ' !== ' + actual + ' for ' + name +
                   ' with input ' + val0 + ' ' + val1);
             assertTrue(false);
           }
         }
       }
     }
   }
 })();