[wasm] [asmjs] Route asm.js warnings to the dev console.

src/asmjs/asm-typer.cc

Index: src/asmjs/asm-typer.cc
diff --git a/src/asmjs/asm-typer.cc b/src/asmjs/asm-typer.cc
index 2b0b91a5568ff8b9081cbbb7db21b03309815d94..a43ca91764272d246ffc8fd8aca0160a75c4ca10 100644
--- a/src/asmjs/asm-typer.cc
+++ b/src/asmjs/asm-typer.cc
@@ -17,16 +17,19 @@
 #include "src/base/bits.h"
 #include "src/codegen.h"
 #include "src/globals.h"
+#include "src/messages.h"
 #include "src/utils.h"
 
-#define FAIL(node, msg)                                        \
-  do {                                                         \
-    int line = node->position() == kNoSourcePosition           \
-                   ? -1                                        \
-                   : script_->GetLineNumber(node->position()); \
-    base::OS::SNPrintF(error_message_, sizeof(error_message_), \
-                       "asm: line %d: %s", line + 1, msg);     \
-    return AsmType::None();                                    \
+#define FAIL(node, msg)                                                   \
+  do {                                                                    \
+    MessageLocation location(handle(script_), node->position(),           \
+                             node->position());                           \
+    Handle<String> message(isolate_->factory()->InternalizeOneByteString( \
+        STATIC_CHAR_VECTOR(msg)));                                        \
+    error_message_ = MessageHandler::MakeMessageObject(                   \
+        isolate_, MessageTemplate::kAsmJsInvalid, &location, message,     \
+        Handle<JSArray>::null());                                         \
+    return AsmType::None();                                               \
   } while (false)
 
 #define RECURSE(call)                                             \
@@ -2848,19 +2851,6 @@ AsmType* AsmTyper::NewHeapView(CallNew* new_heap_view) {
   return heap_view_info->type();
 }
 
-bool IsValidAsm(Isolate* isolate, Zone* zone, Script* script,
-                FunctionLiteral* root, std::string* error_message) {
-  error_message->clear();
-
-  AsmTyper typer(isolate, zone, script, root);
-  if (typer.Validate()) {
-    return true;
-  }
-
-  *error_message = typer.error_message();
-  return false;
-}
-
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8