Remove redundant source position information in RelocInfo

src/x87/assembler-x87.cc

Index: src/x87/assembler-x87.cc
diff --git a/src/x87/assembler-x87.cc b/src/x87/assembler-x87.cc
index 4177156ee66c1dede3776720fea62aa6548bae20..41a750249e586e67eaa9177fbc657a5db79b400d 100644
--- a/src/x87/assembler-x87.cc
+++ b/src/x87/assembler-x87.cc
@@ -256,6 +256,7 @@ Assembler::Assembler(Isolate* isolate, void* buffer, int buffer_size)
 void Assembler::GetCode(CodeDesc* desc) {
   // Finalize code (at this point overflow() may be true, but the gap ensures
   // that we are still not overlapping instructions and relocation info).
+  reloc_info_writer.Finish();
   DCHECK(pc_ <= reloc_info_writer.pos());  // No overlap.
   // Set up code descriptor.
   desc->buffer = buffer_;