MIPS: [runtime] Unify and simplify how frames are marked.

src/mips/macro-assembler-mips.h

Index: src/mips/macro-assembler-mips.h
diff --git a/src/mips/macro-assembler-mips.h b/src/mips/macro-assembler-mips.h
index 33064e6e42166af88df4a2aa6b8e8b9ac24840e3..e5d1513e200eb641c02e828249d85fb66716b452 100644
--- a/src/mips/macro-assembler-mips.h
+++ b/src/mips/macro-assembler-mips.h
@@ -762,6 +762,14 @@ class MacroAssembler: public Assembler {
     Addu(sp, sp, Operand(count * kPointerSize));
   }
 
+  // Push a fixed frame, consisting of ra, fp.
+  void PushCommonFrame(Register marker_reg = no_reg);
+
+  // Push a standard frame, consisting of ra, fp, context and JS function.
+  void PushStandardFrame(Register function_reg);
+
+  void PopCommonFrame(Register marker_reg = no_reg);
+
   // Push and pop the registers that can hold pointers, as defined by the
   // RegList constant kSafepointSavedRegisters.
   void PushSafepointRegisters();