RFR (urgent, trivial): 8220515: Revert removal of for_each_lock_value removal

[Claes Redestad]

Hi,

revert the removal of the for_each_lock_value macro part of JDK-8220501,
as this breaks debug builds.

Bug: https://bugs.openjdk.java.net/browse/JDK-8220515
Patch:

--- a/src/hotspot/share/c1/c1_ValueStack.hpp	Tue Mar 12 15:26:45 2019 +0100
+++ b/src/hotspot/share/c1/c1_ValueStack.hpp	Tue Mar 12 15:56:59 2019 +0100
@@ -261,6 +261,14 @@
         index += value->type()->size())


+#define for_each_lock_value(state, index, value) 
                        \
+  int temp_var = state->locks_size(); 
                        \
+  for (index = 0; 
                        \
+       index < temp_var && (value = state->lock_at(index), true); 
                        \
+       index++) 
                        \
+    if (value != NULL)
+
+
  // Macro definition for simple iteration of all state values of a 
ValueStack
  // Because the code cannot be executed in a single loop, the code must 
be passed
  // as a macro parameter.