[turbofan] Fix loading of JSFunction from activation in case of adapter frame.

src/compiler/mips/code-generator-mips.cc

Index: src/compiler/mips/code-generator-mips.cc
diff --git a/src/compiler/mips/code-generator-mips.cc b/src/compiler/mips/code-generator-mips.cc
index 7cf7927ab3facc144bf895103fb36b5c908df1ca..c24370102e509930466c95bf2e6b3a3d1451d163 100644
--- a/src/compiler/mips/code-generator-mips.cc
+++ b/src/compiler/mips/code-generator-mips.cc
@@ -984,6 +984,8 @@ void CodeGenerator::AssemblePrologue() {
     // remaining stack slots.
     if (FLAG_code_comments) __ RecordComment("-- OSR entrypoint --");
     osr_pc_offset_ = __ pc_offset();
+    // TODO(titzer): cannot address target function == local #-1
+    __ lw(a1, MemOperand(fp, -2 * kPointerSize));
     DCHECK(stack_slots >= frame()->GetOsrStackSlotCount());
     stack_slots -= frame()->GetOsrStackSlotCount();
   }