Fix deoptmization of inlined TF InstanceOf to call ToBoolean

src/builtins/builtins-conversion-gen.cc

Index: src/builtins/builtins-conversion-gen.cc
diff --git a/src/builtins/builtins-conversion-gen.cc b/src/builtins/builtins-conversion-gen.cc
index 43cac0ed6d806d565ef73592144815728f280b12..25ab4e6ef8c30413170bb9680ecb49cfa0f22e09 100644
--- a/src/builtins/builtins-conversion-gen.cc
+++ b/src/builtins/builtins-conversion-gen.cc
@@ -256,6 +256,22 @@ TF_BUILTIN(ToBoolean, CodeStubAssembler) {
   Return(BooleanConstant(false));
 }
 
+// ES6 section 7.1.2 ToBoolean ( argument )
+// Requires parameter on stack to that it can be used as a continuation from a

[Michael Starzinger, 2017/06/22 14:16:11]

nit: s/to/so/

[danno, 2017/06/22 15:04:00]

Done.

+// LAZY deopt.
+TF_BUILTIN(ToBooleanLazyDeoptContinuation, CodeStubAssembler) {
+  Node* value = Parameter(Descriptor::kArgument);
+
+  Label return_true(this), return_false(this);
+  BranchIfToBooleanIsTrue(value, &return_true, &return_false);
+
+  BIND(&return_true);
+  Return(BooleanConstant(true));
+
+  BIND(&return_false);
+  Return(BooleanConstant(false));
+}
+
 TF_BUILTIN(ToLength, CodeStubAssembler) {
   Node* context = Parameter(Descriptor::kContext);