X87: Assembler changes for enabling GrowHeap in Wasm

src/x87/assembler-x87.h

Index: src/x87/assembler-x87.h
diff --git a/src/x87/assembler-x87.h b/src/x87/assembler-x87.h
index 2676a35163265ecf07883a60bc9a7c49f9af5bfb..0acddb8ad5bcdb79fea9a2476836884e93467786 100644
--- a/src/x87/assembler-x87.h
+++ b/src/x87/assembler-x87.h
@@ -272,6 +272,7 @@ class Immediate BASE_EMBEDDED {
   inline explicit Immediate(Handle<Object> handle);
   inline explicit Immediate(Smi* value);
   inline explicit Immediate(Address addr);
+  inline explicit Immediate(Address x, RelocInfo::Mode rmode);
 
   static Immediate CodeRelativeOffset(Label* label) {
     return Immediate(label);