Fix issue 493: Infinite loop when debug break is set when entering function.apply

src/arm/regexp-macro-assembler-arm.cc

Index: src/arm/regexp-macro-assembler-arm.cc
===================================================================
--- src/arm/regexp-macro-assembler-arm.cc	(revision 3200)
+++ src/arm/regexp-macro-assembler-arm.cc	(working copy)
@@ -588,9 +588,9 @@
   Label stack_limit_hit;
   Label stack_ok;
 
-  ExternalReference stack_guard_limit =
-      ExternalReference::address_of_stack_guard_limit();
-  __ mov(r0, Operand(stack_guard_limit));
+  ExternalReference stack_limit =
+      ExternalReference::address_of_stack_limit();
+  __ mov(r0, Operand(stack_limit));
   __ ldr(r0, MemOperand(r0));
   __ sub(r0, sp, r0, SetCC);
   // Handle it if the stack pointer is already below the stack limit.
@@ -1090,9 +1090,9 @@
 
 void RegExpMacroAssemblerARM::CheckPreemption() {
   // Check for preemption.
-  ExternalReference stack_guard_limit =
-      ExternalReference::address_of_stack_guard_limit();
-  __ mov(r0, Operand(stack_guard_limit));
+  ExternalReference stack_limit =
+      ExternalReference::address_of_stack_limit();
+  __ mov(r0, Operand(stack_limit));
   __ ldr(r0, MemOperand(r0));
   __ cmp(sp, r0);
   SafeCall(&check_preempt_label_, ls);