[destructuring] Implement parameter pattern matching.

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index ad9655bb0fa4d32e10c6533832cc123caa997b07..c29fed4c03e8c3422b8b4e65906cc33a47801c8a 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -6774,7 +6774,7 @@ void HOptimizedGraphBuilder::HandleCompoundAssignment(Assignment* expr) {
           // a linear search of the parameter variables.
           int count = current_info()->scope()->num_parameters();
           for (int i = 0; i < count; ++i) {
-            if (var == current_info()->scope()->parameter(i)) {
+            if (var == current_info()->scope()->parameter_var(i)) {
               Bailout(kAssignmentToParameterFunctionUsesArgumentsObject);
             }
           }
@@ -6908,7 +6908,7 @@ void HOptimizedGraphBuilder::VisitAssignment(Assignment* expr) {
           // to detect that the variable is a parameter.
           int count = current_info()->scope()->num_parameters();
           for (int i = 0; i < count; ++i) {
-            if (var == current_info()->scope()->parameter(i)) {
+            if (var == current_info()->scope()->parameter_var(i)) {
               return Bailout(kAssignmentToParameterInArgumentsObject);
             }
           }
@@ -10402,7 +10402,7 @@ void HOptimizedGraphBuilder::VisitCountOperation(CountOperation* expr) {
           // linear search of the parameter list.
           int count = current_info()->scope()->num_parameters();
           for (int i = 0; i < count; ++i) {
-            if (var == current_info()->scope()->parameter(i)) {
+            if (var == current_info()->scope()->parameter_var(i)) {
               return Bailout(kAssignmentToParameterInArgumentsObject);
             }
           }