Reland and fix "Add support for keyed-call on arrays of fast elements"

src/compiler.h

Index: src/compiler.h
diff --git a/src/compiler.h b/src/compiler.h
index 2d9e52a8e3e23de7e30c25f766cb43b58aec5b39..5ebcfd97cb1c40457f6a43c5b4c14b256a782da9 100644
--- a/src/compiler.h
+++ b/src/compiler.h
@@ -98,6 +98,10 @@ class CompilationInfo {
     ASSERT(!is_lazy());
     flags_ |= IsGlobal::encode(true);
   }
+  void set_parameter_count(int parameter_count) {
+    ASSERT(IsStub());
+    parameter_count_ = parameter_count;
+  }
   void SetLanguageMode(LanguageMode language_mode) {
     ASSERT(this->language_mode() == CLASSIC_MODE ||
            this->language_mode() == language_mode ||
@@ -442,6 +446,9 @@ class CompilationInfo {
   // during graph optimization.
   int opt_count_;
 
+  // Number of parameters used for compilation of stubs that require arguments.
+  int parameter_count_;
+
   Handle<Foreign> object_wrapper_;
 
   DISALLOW_COPY_AND_ASSIGN(CompilationInfo);