Fix a test in the IA32 code generator for whether loop conditions

contain function literals.  The test was not conservative enough.

Review URL: http://codereview.chromium.org/42138

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1504 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/codegen-ia32.cc

@@ -2231,7 +2231,8 @@ void CodeGenerator::VisitLoopStatement(LoopStatement* node) {
       // Do not duplicate conditions with function literal
       // subexpressions.  This can cause us to compile the function
       // literal twice.
-      bool test_at_bottom = !node->has_function_literal();
+      bool test_at_bottom =
+          !scope_->is_global_scope() && !node->has_function_literal();
 
       IncrementLoopNesting();
 
@@ -2329,7 +2330,8 @@ void CodeGenerator::VisitLoopStatement(LoopStatement* node) {
       // Do not duplicate conditions with function literal
       // subexpressions.  This can cause us to compile the function
       // literal twice.
-      bool test_at_bottom = !node->has_function_literal();
+      bool test_at_bottom =
+          !scope_->is_global_scope() && !node->has_function_literal();
 
       // Compile the init expression if present.
       if (node->init() != NULL) {