Add test to check that RegExp-ia32 can survive a garbage collection during execution.

src/regexp-macro-assembler-ia32.h

Index: src/regexp-macro-assembler-ia32.h
diff --git a/src/regexp-macro-assembler-ia32.h b/src/regexp-macro-assembler-ia32.h
index d48678cb05ab1d5ba222e7fc0a99e6d147df0b34..a9297f593a3dad187e5a5369537fb6e98dbf5c6a 100644
--- a/src/regexp-macro-assembler-ia32.h
+++ b/src/regexp-macro-assembler-ia32.h
@@ -166,7 +166,7 @@ class RegExpMacroAssemblerIA32: public RegExpMacroAssembler {
   // Called from RegExp if the stack-guard is triggered.
   // If the code object is relocated, the return address is fixed before
   // returning.
-  static int CheckStackGuardState(Address return_address, Code* re_code);
+  static int CheckStackGuardState(Address* return_address, Code* re_code);
 
   // Called from RegExp if the backtrack stack limit is hit.
   // Tries to expand the stack. Returns the new stack-pointer if