[wasm] [asm.js] Fix asm.js issues around floating point globals.

src/asmjs/asm-typer.h

Index: src/asmjs/asm-typer.h
diff --git a/src/asmjs/asm-typer.h b/src/asmjs/asm-typer.h
index 4fb402949d8aaa81605b43c34a6806c8bad42062..942ca21370cf11f719df7a4658d4ddf42b52d695 100644
--- a/src/asmjs/asm-typer.h
+++ b/src/asmjs/asm-typer.h
@@ -306,8 +306,9 @@ class AsmTyper final {
   // 5.2 ReturnTypeAnnotations
   AsmType* ReturnTypeAnnotations(ReturnStatement* statement);
   // 5.4 VariableTypeAnnotations
-  AsmType* VariableTypeAnnotations(Expression* initializer);
   // 5.5 GlobalVariableTypeAnnotations
+  AsmType* VariableTypeAnnotations(Expression* initializer,
+                                   bool global = false);
   AsmType* ImportExpression(Property* import);
   AsmType* NewHeapView(CallNew* new_heap_view);