Inlined optimized runtime functions: expose Runtime versions for direct testing, skip Hydrogen vers…

src/runtime.h

Index: src/runtime.h
diff --git a/src/runtime.h b/src/runtime.h
index 566a5ebeabef50f7c30c3f090752f0e2a8bc50b4..b0cc564ba112eabe715126e24daaf594351374e3 100644
--- a/src/runtime.h
+++ b/src/runtime.h
@@ -662,6 +662,8 @@ namespace internal {
 // INLINE_OPTIMIZED_FUNCTION_LIST defines all inlined functions accessed
 // with a native call of the form %_name from within JS code that also have
 // a corresponding runtime function, that is called from non-optimized code.
+// For the benefit of (fuzz) tests, the runtime version can also be called
+// directly as %name (i.e. without the leading underscore).
 // Entries have the form F(name, number of arguments, number of return values).
 #define INLINE_OPTIMIZED_FUNCTION_LIST(F) \
   /* Typed Arrays */                                                         \
@@ -734,6 +736,7 @@ class Runtime : public AllStatic {
   enum FunctionId {
 #define F(name, nargs, ressize) k##name,
     RUNTIME_FUNCTION_LIST(F)
+    INLINE_OPTIMIZED_FUNCTION_LIST(F)
 #undef F
 #define F(name, nargs, ressize) kHidden##name,
     RUNTIME_HIDDEN_FUNCTION_LIST(F)