GYP: Fix compilation failure due to Wtautological-constant-compare warning

Port https://chromium-review.googlesource.com/c/chromium/src/+/752143 to GYP

Bug: 
Change-Id: Id6f3322282ef5992b1e93dcab16d573a6b394a4d
Reviewed-on: https://chromium-review.googlesource.com/758243Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Ivica Bogosavljevic <ivica.bogosavljevic@mips.com>
Cr-Commit-Position: refs/heads/master@{#49227}

gypfiles/standalone.gypi

@@ -439,6 +439,7 @@
         '-Wno-undefined-var-template',
         # TODO(yangguo): issue 5258
         '-Wno-nonportable-include-path',
+        '-Wno-tautological-constant-compare',
       ],
       'conditions':[
         ['OS=="android"', {

src/asmjs/asm-parser.cc

@@ -1392,11 +1392,10 @@ AsmType* AsmJsParser::NumericLiteral() {
     if (uvalue <= 0x7fffffff) {
       current_function_builder_->EmitI32Const(static_cast<int32_t>(uvalue));
       return AsmType::FixNum();
-    } else if (uvalue <= 0xffffffff) {
+    } else {
+      DCHECK_LE(uvalue, 0xffffffff);
       current_function_builder_->EmitI32Const(static_cast<int32_t>(uvalue));
       return AsmType::Unsigned();
-    } else {
-      FAILn("Integer numeric literal out of range.");
     }
   } else {
     FAILn("Expected numeric literal.");