[wasm] asm.js - Check stdlib functions are valid.

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 88879ab84d4a190c6954bcecdf41e1543d521e1d..01c8caed6e1eb2c0a8988f0c65a4d29d4a125f52 100644
--- a/src/asmjs/asm-typer.cc
+++ b/src/asmjs/asm-typer.cc
@@ -326,6 +326,7 @@ AsmTyper::VariableInfo* AsmTyper::ImportLookup(Property* import) {
   if (i == stdlib->end()) {
     return nullptr;
   }
+  stdlib_uses_.insert(i->second->standard_member());
   return i->second;
 }
 
@@ -429,7 +430,6 @@ AsmTyper::StandardMember AsmTyper::VariableAsStandardMember(Variable* var) {
     return kNone;
   }
   StandardMember member = var_info->standard_member();
-  stdlib_uses_.insert(member);
   return member;
 }