[generators] Replace some runtime functions with Turbofan JS operators.

src/runtime/runtime.h

Index: src/runtime/runtime.h
diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h
index 2c80280f3afc7c5b18f8e2b7e8427de48aaec54e..3396f96449830b713f7ff955fe22d3e658af4613 100644
--- a/src/runtime/runtime.h
+++ b/src/runtime/runtime.h
@@ -230,13 +230,9 @@ namespace internal {
   F(GeneratorGetFunction, 1, 1)         \
   F(GeneratorGetReceiver, 1, 1)         \
   F(GeneratorGetInput, 1, 1)            \
-  F(GeneratorSetContext, 1, 1)          \
   F(GeneratorGetContinuation, 1, 1)     \
-  F(GeneratorSetContinuation, 2, 1)     \
   F(GeneratorGetSourcePosition, 1, 1)   \
-  F(GeneratorGetResumeMode, 1, 1)       \
-  F(GeneratorLoadRegister, 2, 1)        \
-  F(GeneratorStoreRegister, 3, 1)
+  F(GeneratorGetResumeMode, 1, 1)
 
 #ifdef V8_I18N_SUPPORT
 #define FOR_EACH_INTRINSIC_I18N(F)           \