Removed most of the bogus CompilationInfo constructor calls.

src/compiler/pipeline.cc

Index: src/compiler/pipeline.cc
diff --git a/src/compiler/pipeline.cc b/src/compiler/pipeline.cc
index 66be9b8fd49082976e37ca869f2f5877b34a7ac4..89d1b7361b59bef98dff3d3ef504e19b08d2e3ca 100644
--- a/src/compiler/pipeline.cc
+++ b/src/compiler/pipeline.cc
@@ -415,7 +415,7 @@ struct ContextSpecializerPhase {
   void Run(PipelineData* data, Zone* temp_zone) {
     SourcePositionTable::Scope pos(data->source_positions(),
                                    SourcePosition::Unknown());
-    JSContextSpecializer spec(data->info(), data->jsgraph(),
+    JSContextSpecializer spec(data->info()->context(), data->jsgraph(),
                               data->context_node());
     GraphReducer graph_reducer(data->graph(), temp_zone);
     AddReducer(data, &graph_reducer, &spec);
@@ -512,10 +512,9 @@ struct ChangeLoweringPhase {
   void Run(PipelineData* data, Zone* temp_zone) {
     SourcePositionTable::Scope pos(data->source_positions(),
                                    SourcePosition::Unknown());
-    Linkage linkage(data->graph_zone(), data->info());
     ValueNumberingReducer vn_reducer(temp_zone);
     SimplifiedOperatorReducer simple_reducer(data->jsgraph());
-    ChangeLowering lowering(data->jsgraph(), &linkage);
+    ChangeLowering lowering(data->jsgraph());
     MachineOperatorReducer machine_reducer(data->jsgraph());
     CommonOperatorReducer common_reducer;
     GraphReducer graph_reducer(data->graph(), temp_zone);
@@ -571,7 +570,8 @@ struct GenericLoweringPhase {
   void Run(PipelineData* data, Zone* temp_zone) {
     SourcePositionTable::Scope pos(data->source_positions(),
                                    SourcePosition::Unknown());
-    JSGenericLowering generic(data->info(), data->jsgraph());
+    JSGenericLowering generic(data->info()->is_typing_enabled(),
+                              data->jsgraph());
     SelectLowering select(data->jsgraph()->graph(), data->jsgraph()->common());
     GraphReducer graph_reducer(data->graph(), temp_zone);
     AddReducer(data, &graph_reducer, &generic);
@@ -954,7 +954,7 @@ Handle<Code> Pipeline::GenerateCode() {
 
   {
     // Generate optimized code.
-    Linkage linkage(data.instruction_zone(), info());
+    Linkage linkage(Linkage::ComputeIncoming(data.instruction_zone(), info()));
     GenerateCode(&linkage);
   }
   Handle<Code> code = data.code();
@@ -1026,7 +1026,7 @@ Handle<Code> Pipeline::GenerateCodeForTesting(CompilationInfo* info,
     TraceSchedule(schedule);
   }
 
-  Linkage linkage(info->isolate(), info->zone(), call_descriptor);
+  Linkage linkage(call_descriptor);
   pipeline.GenerateCode(&linkage);
   Handle<Code> code = data.code();