MIPS: Avoid using dd() in Prologue when --optimize-for-size.

src/mips/assembler-mips.h

Index: src/mips/assembler-mips.h
diff --git a/src/mips/assembler-mips.h b/src/mips/assembler-mips.h
index 2468c3c340c7b8a9ec5dfe331b0b3ae0d2f6a941..49cce621efa2a48b89dd7250504a73a0fd304880 100644
--- a/src/mips/assembler-mips.h
+++ b/src/mips/assembler-mips.h
@@ -896,6 +896,9 @@ class Assembler : public AssemblerBase {
   void db(uint8_t data);
   void dd(uint32_t data);
 
+  // Emits the address of the code stub's first instruction.
+  void emit_code_stub_address(Code* stub);
+
   PositionsRecorder* positions_recorder() { return &positions_recorder_; }
 
   // Postpone the generation of the trampoline pool for the specified number of