Enable optimization of functions with generic switches.

src/ia32/full-codegen-ia32.cc

Index: src/ia32/full-codegen-ia32.cc
diff --git a/src/ia32/full-codegen-ia32.cc b/src/ia32/full-codegen-ia32.cc
index 3c92afa33a669446afd1dec29fb4e12077f08f02..c8101b16bbf46e273e02e6932b8782ee283abc77 100644
--- a/src/ia32/full-codegen-ia32.cc
+++ b/src/ia32/full-codegen-ia32.cc
@@ -977,6 +977,16 @@ void FullCodeGenerator::VisitSwitchStatement(SwitchStatement* stmt) {
     Handle<Code> ic = CompareIC::GetUninitialized(isolate(), Token::EQ_STRICT);
     CallIC(ic, RelocInfo::CODE_TARGET, clause->CompareId());
     patch_site.EmitPatchInfo();
+
+    Label skip;
+    __ jmp(&skip, Label::kNear);
+    PrepareForBailout(clause, TOS_REG);
+    __ cmp(eax, isolate()->factory()->true_value());
+    __ j(not_equal, &next_test);
+    __ Drop(1);
+    __ jmp(clause->body_target());
+    __ bind(&skip);
+
     __ test(eax, eax);
     __ j(not_equal, &next_test);
     __ Drop(1);  // Switch value is no longer needed.