[kernel] Change how TypeParameterType is calculated.

runtime/vm/kernel_binary_flowgraph.h

Index: runtime/vm/kernel_binary_flowgraph.h
diff --git a/runtime/vm/kernel_binary_flowgraph.h b/runtime/vm/kernel_binary_flowgraph.h
index daf12245225fbe6557dff61427841f0bb4142a09..5d07c19ff012cd6808a44aaf7a465e96e33d3aba 100644
--- a/runtime/vm/kernel_binary_flowgraph.h
+++ b/runtime/vm/kernel_binary_flowgraph.h
@@ -57,6 +57,11 @@ class StreamingDartTypeTranslator {
           parameters_count_(parameters_count),
           outer_(translator->type_parameter_scope_),
           translator_(translator) {
+      summed_outer_parameters_count_ = 0;

[Kevin Millikin (Google), 2017/08/08 14:08:51]

summed_ seems like a noise word and I wouldn't make it plural if I was using
count, so: outer_parameter_count_.

[jensj, 2017/08/09 08:39:47]

Done.

+      if (outer_ != NULL) {
+        summed_outer_parameters_count_ =
+            outer_->summed_outer_parameters_count_ + outer_->parameters_count_;
+      }
       translator_->type_parameter_scope_ = this;
     }
     ~TypeParameterScope() { translator_->type_parameter_scope_ = outer_; }
@@ -64,10 +69,14 @@ class StreamingDartTypeTranslator {
     TypeParameterScope* outer() const { return outer_; }
     intptr_t parameters_offset() const { return parameters_offset_; }
     intptr_t parameters_count() const { return parameters_count_; }
+    intptr_t summed_outer_parameters_count() const {
+      return summed_outer_parameters_count_;
+    }
 
    private:
     intptr_t parameters_offset_;
     intptr_t parameters_count_;
+    intptr_t summed_outer_parameters_count_;
     TypeParameterScope* outer_;
     StreamingDartTypeTranslator* translator_;
   };
@@ -346,20 +355,8 @@ class StreamingFlowGraphBuilder {
  private:
   void DiscoverEnclosingElements(Zone* zone,
                                  const Function& function,
-                                 Function* outermost_function,
-                                 intptr_t* outermost_kernel_offset,
-                                 intptr_t* parent_class_offset);
-  intptr_t GetParentOffset(intptr_t offset);
-  void GetTypeParameterInfoForClass(intptr_t class_offset,
-                                    intptr_t* type_paremeter_counts,
-                                    intptr_t* type_paremeter_offset);
-
-  void GetTypeParameterInfoForPossibleProcedure(
-      intptr_t outermost_kernel_offset,
-      bool* member_is_procedure,
-      bool* is_factory_procedure,
-      intptr_t* member_type_parameters,
-      intptr_t* member_type_parameters_offset_start);
+                                 Function* outermost_function);
+
   /**
    * Will return kernel offset for parent class if reading a constructor.
    * Will otherwise return -1.